Search Results

Search found 1214 results on 49 pages for 'tomaz tsql'.

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

Page 44/49 | < Previous Page | 40 41 42 43 44 45 46 47 48 49  | Next Page >

  • SQL top + count() confusion

    - by vasin
    I've got the following table: patients id name diagnosis_id What I need to do is get all the patients with N most popular diagnosis. And I'm getting nothing using this query: SELECT name FROM patients WHERE diagnosis_id IN (SELECT TOP(5) COUNT(diagnosis_id) FROM patients GROUP BY diagnosis_id ORDER BY diagnosis_id) How to fix it?

    Read the article

  • complex data requirement.

    - by Abulalia
    Here is my query: select Table1.a, Table1.b, Table1.c, Table1.d, Table2.e, Table3.f, Table4.g, Table5.h from Table1 left join Table6 on Table1.b=Table6.b left join Table3 on Table6.j=Table3.j left join Table7 on Table1.b=Table7.b left join Table5 on Table7.h=Table5.h inner join Table4 on Table1.k=Table4.k inner join Table2 on Table1.m=Table2.m where Table2.e <= x and Table2.n = y and Table3.f in (‘r’, ‘s’) and Table1.d = z group by Table1.a, Table1.b, Table1.c, Table1.d, Table2.e, Table3.f, Table4.g, Table5.h order by Table1.a, Table1.b, Table1.c I am looking for records (a,b,c,d,e,f,g,h) for every a when the very first record b (there are multiple records b for each a) is either 'r' or 's'. Can someone help?

    Read the article

  • Optimising a query for Top 5% of users

    - by Nai
    On my website, there exists a group of 'power users' who are fantastic and adding lots of content on to my site. However, their prolific activities has led to their profile pages slowing down a lot. For 95% of the other users, the SPROC that is returning the data is very quick. It's only for these group of power users, the very same SPROC is slow. How does one go about optimising the query for this group of users? You can assume that the right indexes have already been constructed. EDIT: Ok, I think I have been a bit too vague. To rephrase the question, how can I optimise my site to enhance the performance for these 5% of users. Given that this SPROC is the same one that is in use for every user and that it is already well optimised, I am guessing the next steps are to explore caching possibilities on the data and application layers?

    Read the article

  • "From the Coal Face" - 1 - What ILDASM can reveal!

    - by TATWORTH
    In a place far, far away, there was a project where the Architect decided on using embedded TSQL in a Dot Net application, rather than use stored procedures. I located ILDASM.EXE (my Framework 3.5 version lives at C:\Program Files\Microsoft SDKs\Windows\v7.0A\bin on my home development PC) and created a shortcut to it in the SendTo folder. Now I could set about doing a simple demonstration to the Architect by taking one of the Dot Net EXE's with the embedded TSQL and sending it to ILDASM.  Since I had written most of the embedded TSQL, it was a matter of seconds before I located the embedded TSQL within the Exe. The TSQL that was supposed to be safely hidden within the EXE was easily located and and copied. (It should also be noted that we could have encrypted the stored procedures on loading them to the database.)

    Read the article

  • "From the Coal Face" - 1 - What ILDASM can reveal!

    - by TATWORTH
    In a place far, far away, there was a project where the Architect decided on using embedded TSQL in a Dot Net application, rather than use stored procedures. I located ILDASM.EXE (my Framework 3.5 version lives at C:\Program Files\Microsoft SDKs\Windows\v7.0A\bin on my home development PC) and created a shortcut to it in the SendTo folder. Now I could set about doing a simple demonstration to the Architect by taking one of the Dot Net EXE's with the embedded TSQL and sending it to ILDASM.  Since I had written most of the embedded TSQL, it was a matter of seconds before I located the embedded TSQL within the Exe. The TSQL that was supposed to be safely hidden within the EXE was easily located and and copied. (It should also be noted that we could have encrypted the stored procedures on loading them to the database.)

    Read the article

  • problem connecting to datasource defined in freetds.conf

    - by pkaeding
    I can connect successfully to my database using tsql when I bypass the freetds.conf file, like so: % TDSVER=8.0 tsql -H 10.100.102.202 -p 1086 -U sa After I enter my password, I am presented with a 1> prompt, and it is ready for my commands. However, if I try to connect using the definition in my freetds.conf file, like this: % tsql -S Millie -U sa after entering my password, it seems to be trying to generate a prompt, but it just keeps counting. I will see 1, followed by 2, etc, without ever displaying a > character. Here is what I have for my freetds.conf: [global] # TDS protocol version tds version = 8.0 text size = 64512 [Millie] host = 10.100.102.202 port = 1086 What could be causing this anomaly? If it helps, here is the output of tsql -C: % tsql -C Compile-time settings (established with the "configure" script) Version: freetds v0.82 freetds.conf directory: /usr/local/etc MS db-lib source compatibility: no Sybase binary compatibility: no Thread safety: yes iconv library: yes TDS version: 5.0 iODBC: no unixodbc: no

    Read the article

  • SQL Saturday 194 - Exeter

    - by Dave Ballantyne
    Many kudos goes to Jonathan and Annette Allen and the others on the team for confirming SQL Saturday 194 in Exeter on the 8th and 9th of March.  The event home page is here http://www.sqlsaturday.com/194/eventhome.aspx and I delighted that myself and Dave Morrison will be presenting a full day pre-con on the 8th on favourite subjects “TSQL and Internals”. Here is the full abstract : TSQL and internals - When faced with performance issues there are many lines of attack. Tuning the engine itself can get you so far, however for maximum effect you need to understand how the engine and how it translates SQL statements into performable actions. This is not a simple task, it is a massive task to deal with a multi-table join and the number of permutations can be immense. To back up this knowledge, we can create better performing TSQL and understand the impact that is has upon the engine and recognize the pitfalls and gotcha’s that exist in SQLServer. Ultimately, there is no ‘best way’ to perform a single task only many variations of ‘it depends’ , but now we can pick the most appropriate option for the required dataload. Over the years, there have been many myths and misconceptions have grown around the product, some have basis in older versions and some are just wrong. Continuing to build on the knowledge given so far these issue will be explored and broken down and proved or disproved. Finally we will look to the future and explore SQL Server 2012 and the new functionality that that brings and some of the common uses that we will be able to address. After completion of this days pre-con, attendees will have a more complete knowledge of execution plans, and how they relate to the physical and logical actions that SQLServer will be executing on their behalf. The attendees will also have a more rounded and fuller knowledge of TSQL and the implications of incorrectly defining a query. Dave is a fountain of knowledge on execution plans and optimizer internals and ,though i may flatter myself, I’m no shrinking violet when it comes to TSQL and such matters.  I hope that if you cant join us, then there are other pre-cons available from other experts in their fields that may ‘float you boat’ too.  The pre-con page is http://sqlsouthwest.co.uk/SQLSaturday_precon.htm Also, excitingly, this pre-con day is sponsored by Fusion-IO which is a great boon for the day. If you want a more of this then i am offering a 2 day TSQL course starting on the 19th of March. More details on this are available here

    Read the article

  • ... i just avoid GUID

    - by Tomaz.tsql
    Our partner was explaining to me that they are using GUID as primary key on all the tables. My immediate reaction was - why? and couple of basic doubts were: - since I can read uniqueidentifier, it does not tell me absolutely anything - if I will use my relational table, i sure will use other columns to get the information out - SQL is terrible when setting up clustered index on GUID columns (and hence performance problems) - why not use INT? it will save you space on disk, optimizer will be able...(read more)

    Read the article

  • T-SQL Jokes

    - by Tomaz.tsql
    SQL Table walks to a psychiatrist dr. Index Table: "Doctor, I have a problem" Dr: "what kind a problem?" Table: "I'm a mess. I have things all over the place, i always look for my stuff" Dr. "No problem. I will get you in order". Index and table are reading a book "index-sutra" Table: Oh, baby tonight we can try a clustered position" Index: "yeah baby, we can also try covered position" Table: "or maybe multiple clustered position"...(read more)

    Read the article

  • TimeStamp and mini-ETL (extract, transform, load)

    - by Tomaz.tsql
    Short example how to use Timestamp for a mini ETL process of your data. example below is following: Table_1 is production table on server1 Table_2 is datawarehouse table on server2 where datawarehouse is located Every day data are extracted, transformed and loaded to dataware house for further off-line usage and data analysis and business decision support. 1. Creating the environment if object_id ('table_1') is not null drop table table_1; go if object_id ('table_2') is not null drop...(read more)

    Read the article

  • ORDER BY 1,2,3

    - by Tomaz.tsql
    Only for lazy people -> how to order our output by defining numbers instead of column names: select * from ( select 1 as id, 'test' as text_name, 32 as seq union all select 3 as id, 'best' as text_name, 61 as seq union all select 4 as id, 'best' as text_name, 12 as seq union all select 4 as id, 'best' as text_name, 6 as seq union all select 2 as id, 'hest' as text_name, 21 as seq ) as x order by 2,3 --order by 1,2,3 you can specify the select list or you...(read more)

    Read the article

  • SQL Bits VII

    - by Tomaz.tsql
    I was very happy to dive in into SQL Bits VII. Several interesting presentations, interesting concepts, advices and most of all interesting people. Some things actually disturb me. 1. the outlook of all presentations. I would recommend to have standardized outlook of all presentations for each of the presenter. Meaning, to have a general rules of PPT design (fonts, views, etc.), general diagrams, pictures that can be used by everyone (something like techEd introduced as well as SQL PASS). 2. access...(read more)

    Read the article

  • Delete trigger does not catch table truncation

    - by Tomaz.tsql
    Sample shows table truncation will not fire delete trigger. USE AdventureWorks; GO -- STAGING IF EXISTS (SELECT * FROM sys.objects WHERE name = 'est_del_trigger_log' AND type = 'U') DROP TABLE test_del_trigger_log; GO IF EXISTS (SELECT * FROM sys.objects WHERE name = 'est_del_trigger' AND type = 'U') DROP TABLE test_del_trigger; GO CREATE TABLE test_del_trigger (id INT IDENTITY(1,1) ,tkt VARCHAR(10) CONSTRAINT pk_test_del_trigger PRIMARY KEY (id) ); GO INSERT INTO...(read more)

    Read the article

  • News From EAP Testing

    - by Fatherjack
    There is a phrase that goes something like “Watch the pennies and the pounds/dollars will take care of themselves”, meaning that if you pay attention to the small things then the larger things are going to fare well too. I am lucky enough to be a Friend of Red Gate and once in a while I get told about new features in their tools and have a test copy of the software to trial. I got one of those emails a week or so ago and I have been exploring the SQL Prompt 6 EAP since then. One really useful feature of long standing in SQL Prompt is the idea of a code snippet that is automatically pasted into the SSMS editor when you type a few key letters. For example I can type “ssf” and then press the tab key and the text is expanded to SELECT * FROM. There are lots of these combinations and it is possible to create your own really easily. To create your own you use the Snippet Manager interface to define the shortcut letters and the code that you want to have put in their place. Let’s look at an example. Say I am writing a blog about something and want to have the demo code create a temporary table. It might looks like this; The first time you run the code everything is fine, a lovely set of dates fill the results grid but run it a second time and this happens.   Yep, we didn’t destroy the temporary table so the CREATE statement fails when it finds the table already exists. No matter, I have a snippet created that takes care of this.   Nothing too technical here but you will see that in the Code section there is $CURSOR$, this isn’t a TSQL keyword but a marker for SQL Prompt to place the cursor in that position when the Code is pasted into the SSMS Editor. I just place my cursor above the CREATE statement and type “ifobj” – the shortcut for my code to DROP the temporary table – which has been defined in the Snippet Manager as below. This means I am right-away ready to type the name of the offending table. Pretty neat and it’s been very useful in saving me lots of time over many years.   The news for SQL Prompt 6 is that Red Gate have added a new Snippet Command of $PASTE$. Let’s alter our snippet to the following and try it out   Once again, we will type type “ifobj” in the SSMS Editor but first of all, highlight the name of the table #TestTable and copy it to your clipboard. Now type “ifobj” and press Tab… Wherever the string $PASTE$ is placed in the snippet, the contents of your clipboard are merged into the pasted TSQL. This means I don’t need to type the table name into the code snippet, it’s already there and I am seeing a fully functioning piece of TSQL ready to run. This means it is it even easier to write TSQL quickly and consistently. Attention to detail like this from Red Gate means that their developer tools stay on track to keep winning awards year after year and help take the hard work out of writing neat, accurate TSQL. If you want to try out SQL Prompt all the details are at http://www.red-gate.com/products/sql-development/sql-prompt/.

    Read the article

  • Best practise when using httplib2.Http() object

    - by tomaz
    I'm writing a pythonic web API wrapper with a class like this import httplib2 import urllib class apiWrapper: def __init__(self): self.http = httplib2.Http() def _http(self, url, method, dict): ''' Im using this wrapper arround the http object all the time inside the class ''' params = urllib.urlencode(dict) response, content = self.http.request(url,params,method) as you can see I'm using the _http() method to simplify the interaction with the httplib2.Http() object. This method is called quite often inside the class and I'm wondering what's the best way to interact with this object: create the object in the __init__ and then reuse it when the _http() method is called (as shown in the code above) or create the httplib2.Http() object inside the method for every call of the _http() method (as shown in the code sample below) import httplib2 import urllib class apiWrapper: def __init__(self): def _http(self, url, method, dict): '''Im using this wrapper arround the http object all the time inside the class''' http = httplib2.Http() params = urllib.urlencode(dict) response, content = http.request(url,params,method)

    Read the article

  • Why is "while" loop really needed in Python?

    - by Tomaž Pisanski
    I was told that 95% of all loops in Python are "for" loops. Since "while" loops are clearly more "dangerous" than "for" loops, I would like to know if there are situations in which the use of a "while" loop is essential. For teaching purposes it would be useful to know if there is a systematic way of transforming "while" loops into "for" loops.

    Read the article

  • Replacing python docstrings

    - by tomaz
    I have written a epytext to reST markup converter, and now I want to convert all the docstrings in my entire library from epytext to reST format. Is there a smart way to read the all the docstrings in a module and write back the replacements? ps: ast module perhaps?

    Read the article

  • In what order should the Python concepts be explained to absolute beginners?

    - by Tomaž Pisanski
    I am teaching Python to undergraduate math majors. I am interested in the optimal order in which students should be introduced to various Python concepts. In my view, at each stage the students should be able to solve a non-trivial programming problem using only the tools available at that time. Each new tool should enable a simpler solution to a familiar problem. A selection of numerous concepts available in Python is essential in order to keep students focused. They should also motivated and should appreciate each newly mastered tool without too much memorization. Here are some specific questions: For instance, my predecessor introduced lists before strings. I think the opposite is a better solution. Should function definitions be introduced at the very beginning or after mastering basic structured programming ideas, such as decisions (if) and loops (while)? Should sets be introduced before dictionaries? Is it better to introduce reading and writing files early in the course or should one use input and print for most of the course? Any suggestions with explanations are most welcome.

    Read the article

  • Entity Framework version 1- Brief Synopsis and Tips &ndash; Part 1

    - by Rohit Gupta
    To Do Eager loading use Projections (for e.g. from c in context.Contacts select c, c.Addresses)  or use Include Query Builder Methods (Include(“Addresses”)) If there is multi-level hierarchical Data then to eager load all the relationships use Include Query Builder methods like customers.Include("Order.OrderDetail") to include Order and OrderDetail collections or use customers.Include("Order.OrderDetail.Location") to include all Order, OrderDetail and location collections with a single include statement =========================================================================== If the query uses Joins then Include() Query Builder method will be ignored, use Nested Queries instead If the query does projections then Include() Query Builder method will be ignored Use Address.ContactReference.Load() OR Contact.Addresses.Load() if you need to Deferred Load Specific Entity – This will result in extra round trips to the database ObjectQuery<> cannot return anonymous types... it will return a ObjectQuery<DBDataRecord> Only Include method can be added to Linq Query Methods Any Linq Query method can be added to Query Builder methods. If you need to append a Query Builder Method (other than Include) after a LINQ method  then cast the IQueryable<Contact> to ObjectQuery<Contact> and then append the Query Builder method to it =========================================================================== Query Builder methods are Select, Where, Include Methods which use Entity SQL as parameters e.g. "it.StartDate, it.EndDate" When Query Builder methods do projection then they return ObjectQuery<DBDataRecord>, thus to iterate over this collection use contact.Item[“Name”].ToString() When Linq To Entities methods do projection, they return collection of anonymous types --- thus the collection is strongly typed and supports Intellisense EF Object Context can track changes only on Entities, not on Anonymous types. If you use a Defining Query for a EntitySet then the EntitySet becomes readonly since a Defining Query is the same as a View (which is treated as a ReadOnly by default). However if you want to use this EntitySet for insert/update/deletes then we need to map stored procs (as created in the DB) to the insert/update/delete functions of the Entity in the Designer You can use either Execute method or ToList() method to bind data to datasources/bindingsources If you use the Execute Method then remember that you can traverse through the ObjectResult<> collection (returned by Execute) only ONCE. In WPF use ObservableCollection to bind to data sources , for keeping track of changes and letting EF send updates to the DB automatically. Use Extension Methods to add logic to Entities. For e.g. create extension methods for the EntityObject class. Create a method in ObjectContext Partial class and pass the entity as a parameter, then call this method as desired from within each entity. ================================================================ DefiningQueries and Stored Procedures: For Custom Entities, one can use DefiningQuery or Stored Procedures. Thus the Custom Entity Collection will be populated using the DefiningQuery (of the EntitySet) or the Sproc. If you use Sproc to populate the EntityCollection then the query execution is immediate and this execution happens on the Server side and any filters applied will be applied in the Client App. If we use a DefiningQuery then these queries are composable, meaning the filters (if applied to the entityset) will all be sent together as a single query to the DB, returning only filtered results. If the sproc returns results that cannot be mapped to existing entity, then we first create the Entity/EntitySet in the CSDL using Designer, then create a dummy Entity/EntitySet using XML in the SSDL. When creating a EntitySet in the SSDL for this dummy entity, use a TSQL that does not return any results, but does return the relevant columns e.g. select ContactID, FirstName, LastName from dbo.Contact where 1=2 Also insure that the Entity created in the SSDL uses the SQL DataTypes and not .NET DataTypes. If you are unable to open the EDMX file in the designer then note the Errors ... they will give precise info on what is wrong. The Thrid option is to simply create a Native Query in the SSDL using <Function Name="PaymentsforContact" IsComposable="false">   <CommandText>SELECT ActivityId, Activity AS ActivityName, ImagePath, Category FROM dbo.Activities </CommandText></FuncTion> Then map this Function to a existing Entity. This is a quick way to get a custom Entity which is regular Entity with renamed columns or additional columns (which are computed columns). The disadvantage to using this is that It will return all the rows from the Defining query and any filter (if defined) will be applied only at the Client side (after getting all the rows from DB). If you you DefiningQuery instead then we can use that as a Composable Query. The Fourth option (for mapping a READ stored proc results to a non-existent Entity) is to create a View in the Database which returns all the fields that the sproc also returns, then update the Model so that the model contains this View as a Entity. Then map the Read Sproc to this View Entity. The other option would be to simply create the View and remove the sproc altogether. ================================================================ To Execute a SProc that does not return a entity, use a EntityCommand to execute that proc. You cannot call a sproc FunctionImport that does not return Entities From Code, the only way is to use SSDL function calls using EntityCommand.  This changes with EntityFramework Version 4 where you can return Scalar Types, Complex Types, Entities or NonQuery ================================================================ UDF when created as a Function in SSDL, we need to set the Name & IsComposable properties for the Function element. IsComposable is always false for Sprocs, for UDF's set this to true. You cannot call UDF "Function" from within code since you cannot import a UDF Function into the CSDL Model (with Version 1 of EF). only stored procedures can be imported and then mapped to a entity ================================================================ Entity Framework requires properties that are involved in association mappings to be mapped in all of the function mappings for the entity (Insert, Update and Delete). Because Payment has an association to Reservation... hence we need to pass both the paymentId and reservationId to the Delete sproc even though just the paymentId is the PK on the Payment Table. ================================================================ When mapping insert, update and delete procs to a Entity, insure that all the three or none are mapped. Further if you have a base class and derived class in the CSDL, then you must map (ins, upd, del) sprocs to all parent and child entities in the inheritance relationship. Note that this limitation that base and derived entity methods must all must be mapped does not apply when you are mapping Read Stored Procedures.... ================================================================ You can write stored procedures SQL directly into the SSDL by creating a Function element in the SSDL and then once created, you can map this Function to a CSDL Entity directly in the designer during Function Import ================================================================ You can do Entity Splitting such that One Entity maps to multiple tables in the DB. For e.g. the Customer Entity currently derives from Contact Entity...in addition it also references the ContactPersonalInfo Entity. One can copy all properties from the ContactPersonalInfo Entity into the Customer Entity and then Delete the CustomerPersonalInfo entity, finall one needs to map the copied properties to the ContactPersonalInfo Table in Table Mapping (by adding another table (ContactPersonalInfo) to the Table Mapping... this is called Entity Splitting. Thus now when you insert a Customer record, it will automatically create SQL to insert records into the Contact, Customers and ContactPersonalInfo tables even though you have a Single Entity called Customer in the CSDL =================================================================== There is Table by Type Inheritance where another EDM Entity can derive from another EDM entity and absorb the inherted entities properties, for example in the Break Away Geek Adventures EDM, the Customer entity derives (inherits) from the Contact Entity and absorbs all the properties of Contact entity. Thus when you create a Customer Entity in Code and then call context.SaveChanges the Object Context will first create the TSQL to insert into the Contact Table followed by a TSQL to insert into the Customer table =================================================================== Then there is the Table per Hierarchy Inheritance..... where different types are created based on a condition (similar applying a condition to filter a Entity to contain filtered records)... the diference being that the filter condition populates a new Entity Type (derived from the base Entity). In the BreakAway sample the example is Lodging Entity which is a Abstract Entity and Then Resort and NonResort Entities which derive from Lodging Entity and records are filtered based on the value of the Resort Boolean field =================================================================== Then there is Table per Concrete Type Hierarchy where we create a concrete Entity for each table in the database. In the BreakAway sample there is a entity for the Reservation table and another Entity for the OldReservation table even though both the table contain the same number of fields. The OldReservation Entity can then inherit from the Reservation Entity and configure the OldReservation Entity to remove all Scalar Properties from the Entity (since it inherits the properties from Reservation and filters based on ReservationDate field) =================================================================== Complex Types (Complex Properties) Entities in EF can also contain Complex Properties (in addition to Scalar Properties) and these Complex Properties reference a ComplexType (not a EntityType) DropdownList, ListBox, RadioButtonList, CheckboxList, Bulletedlist are examples of List server controls (not data bound controls) these controls cannot use Complex properties during databinding, they need Scalar Properties. So if a Entity contains Complex properties and you need to bind those to list server controls then use projections to return Scalar properties and bind them to the control (the disadvantage is that projected collections are not tracked by the Object Context and hence cannot persist changes to the projected collections bound to controls) ObjectDataSource and EntityDataSource do account for Complex properties and one can bind entities with Complex Properties to Data Source controls and they will be tracked for changes... with no additional plumbing needed to persist changes to these collections bound to controls So DataBound controls like GridView, FormView need to use EntityDataSource or ObjectDataSource as a datasource for entities that contain Complex properties so that changes to the datasource done using the GridView can be persisted to the DB (enabling the controls for updates)....if you cannot use the EntityDataSource you need to flatten the ComplexType Properties using projections With EF Version 4 ComplexTypes are supported by the Designer and can add/remove/compose Complex Types directly using the Designer =================================================================== Conditional Mapping ... is like Table per Hierarchy Inheritance where Entities inherit from a base class and then used conditions to populate the EntitySet (called conditional Mapping). Conditional Mapping has limitations since you can only use =, is null and IS NOT NULL Conditions to do conditional mapping. If you need more operators for filtering/mapping conditionally then use QueryView(or possibly Defining Query) to create a readonly entity. QueryView are readonly by default... the EntitySet created by the QueryView is enabled for change tracking by the ObjectContext, however the ObjectContext cannot create insert/update/delete TSQL statements for these Entities when SaveChanges is called since it is QueryView. One way to get around this limitation is to map stored procedures for the insert/update/delete operations in the Designer. =================================================================== Difference between QueryView and Defining Query : QueryView is defined in the (MSL) Mapping File/section of the EDM XML, whereas the DefiningQuery is defined in the store schema (SSDL). QueryView is written using Entity SQL and is this database agnostic and can be used against any database/Data Layer. DefiningQuery is written using Database Lanaguage i.e. TSQL or PSQL thus you have more control =================================================================== Performance: Lazy loading is deferred loading done automatically. lazy loading is supported with EF version4 and is on by default. If you need to turn it off then use context.ContextOptions.lazyLoadingEnabled = false To improve Performance consider PreCompiling the ObjectQuery using the CompiledQuery.Compile method

    Read the article

  • SQL SERVER – Running Multiple Batch Files Together in Parallel

    - by pinaldave
    Recently I was preparing a demo for my next technical session, I had to do run a SQL code in parallel. I decided to use Batch File to run the code. I am not the best guy to with command shell so I did it with following setup. Code of tsql.sql SELECT 1 ColumnName Code of command.bat sqlcmd -S . -i tsql.sql timeout 100 Code of  AllBatch.bat start cmd.exe /C “command.bat” start cmd.exe /C “command.bat” start cmd.exe /C “command.bat” Now I ran AllBatch.bat and it run all the three files in parallel and simulated my needed scenario. I believe there should be simpler way using power-shell. Anybody want to come up with equivalent code which is improvement to this code? Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: Pinal Dave, PostADay, SQL, SQL Authority, SQL Query, SQL Scripts, SQL Server, SQL Tips and Tricks, SQL Utility, T SQL, Technology

    Read the article

  • Established coding standards for pl/pgsql code

    - by jb01
    I need to standardize coding practises for project that compromises, among others has pl/pgsql database, that has some amount of nontrivial code. I look for: Code formatting guidelines, especially inside procedures. Guidelines on what constructs are consigered unsafe (if any) Naming coventions. Code documentation conventions (if this is pracicised) Any hints to documets that define good practises in pl/pgsql code? If not i'm looking for hints to practices that you consider good. There is related question regarding TSQL: Can anyone recommend coding standards for TSQL?, which is relevant to psql as well, but I need more information on stored procedures. Other related questions: http://stackoverflow.com/questions/1070275/what-indenting-style-do-you-use-in-sql-server-stored-procedures

    Read the article

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

< Previous Page | 40 41 42 43 44 45 46 47 48 49  | Next Page >