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• NHibernate: inserting additional calculated column

  - by Andrey Shchekin

  What would be your approach with NHibernate to do the following: When Comment is inserted into DB, and its property Text is inserted into column Text (due to a mapping), insert into column TextHash a hash of this property value. It seems trivial if I map TextHash, but how should I do this without mapping it? I do not need it in the domain model, its a DB-level optimization (I would use computed HashBytes if not for the length limit).

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• SQL Select statement that includes a column that isn't in the database

  - by Cypher

  I'm trying to execute a SELECT statement that includes a column of a static string value. I've done this in Access, but never with raw SQL. Is this possible? Example: Name Status John Unpaid Terry Unpaid Joe Unpaid In the above example, the "Status" column doesn't exist in the database.

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• default value support for Entity Framework object construction to avoid having to set this column pa

  - by Greg

  Hi, In entity framework is there a way to have a default value for a column such that Linq to Entity won't require this parameter when constructing a new object? For example I've marked on column in the EF designer with a default value (I typed in "All" as it was a string). But if I try to construct a new record and not specify this parameter I still get a FOREIGN KEY constraint exception. The INSERT statement conflicted with the FOREIGN KEY constraint "FK_FunctionalityTypeInterfaceRelationship"

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• Change the format of the date column in Thunderbird

  - by TheOmega

  I want to change the format of the "Date"-column in the messagelist in Thunderbird. For mails from today, I want to display only the time, not the date. For mails from before today, I want to display only the date, not the time. This is the same setup mutt uses. I know of the Date display format wiki article, which describes how to change the date format, but you can only switch between five predefined formats, and none of them is "Date only". I also know of the ConfigDate extension, but it's got the same limitations, you can't define a new date format.

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• SQL Reset Identity ID in already populated table

  - by rockinthesixstring

  hey all. I have a table in my DB that has about a thousand records in it. I would like to reset the identity column so that all of the ID's are sequential again. I was looking at this but I'm ASSuming that it only works on an empty table Current Table ID | Name 1 Joe 2 Phil 5 Jan 88 Rob Desired Table ID | Name 1 Joe 2 Phil 3 Jan 4 Rob Thanks in advance

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• Adding Dropdown list to the particular column..using jquery

  - by kumar

  hi, Hi I need to append the dropdownlist box with certain values to the jquery grid column, that is default dropdownlist for perticular column.... I am using this type of jQuery grid http://www.trirand.net/demoaspnetmvc.aspx can anyone help me out.. Thanks

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• SQL Query for size of a nvarchar(max) column

  - by Jim

  I have a column which is of type nvarchar(max). How do I find the length of the string (or the number of bytes) for the column for each row in the table?

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• MonoRail - How to grab records where a column isn't null

  - by Justin

  Hey, In MonoRail/Active Record if I want to grab all records that have a certain column equal to null, I can do: public static Category[] AllParentCategories() { return (FindAllByProperty("Parent.Id", null)); } However, what if I want to grab all records where that column doesn't equal null? I can't figure out how to do that using this FindAllByProperty method, is there another method that is more flexible or a way to grab records using a linq-like querying language? Thanks, Justin

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• Unknown column even thoug it exits

  - by george

  I have SELECT servisler.geo_location, servisler.ADRES_MERKEZ, servisler.ADRES_ILCE, servisler.ADRES_IL, servisler.FIRMA_UNVANI, servisler.ADRES_ISTEL, servisler.YETKILI_ADISOYADI, urun_gruplari.GRUP_ADI FROM servisler INNER JOIN urun_gruplari ON kullanici_cihaz.URUN_GRUP_NO= urun_gruplari.RECNO INNER JOIN kullanici ON kullanici.SERVIS_RECNO = servisler.RECNO INNER JOIN kullanici_cihaz ON kullanici.RECNO = kullanici_cihaz.KUL_RECNO AND kullanici_cihaz.URUN_GRUP_NO = urun_gruplari.RECNO where kullanici.kullanici = 'MAR.EDI.003' but it says [Err] 1054 - Unknown column 'kullanici_cihaz.URUN_GRUP_NO' in 'on clause' enen though the column exits. What is its problem? schema Server version: 5.1.33-community-log

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• GORM column names for simple one to many mapping

  - by Toby Hobson

  I have this setup class User { Date lastLogin // logins is a history of logins static hasMany = [logins : Date] def setLastLogin(Date date) { if (date) { lastLogin = date addToLogins(date) } } } GORM is generating a table MEMBER_LOGINS which currently looks like this: USER_ID, LOGINS Instead I would like USER_ID, DATE I tried adding a mapping in User static mapping = { logins column: 'date'; } But that just changed the foreign key so i now have DATE, LOGINS How can I change the LOGINS column? Thanks!

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• Hiding a column from a pivot table without removing it from the chart

  - by Simon

  I have a pivot table with two columns: number of users who visited a website (impressions) and number of users who registered on the site (regs). The rows are for dates. I want to visualize the percentage of users who registered after visiting the site. Thus, I have the number of users for each cell as a value field, displaying it as percentage of impressions. Generating a pivot chart from the table, impressions and regs are plotted over date as a percentage of impressions. This means there is one line at 100% for impressions (always 100% of itself) and the graph for registrations below that. I'd like to remove the line for impressions, but when I set a filter to do so, registrations vanish as well, since the column for impressions is filtered from the pivot chart as well, turning the value field invalid. How can I just show registrations as a percentage of impressions in the chart?

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• Copy SQL 2005 view result column headers?

  - by DonnMt

  Is there a way to copy View output column headers along with the data? There is a setting in Options to include column headers with query results, but that only works with "New Query" and Stored Procedure output. Looks like SSMS 2008 has this functionality built in to the contextual menu when you right click on results, but I only have 2005. Am I out of luck? Thanks for any help.

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• click on one column total row is highlate

  - by sairam333

  If i click a paricular column in a dispalying list dynamically at that time that particular row will be highlated ,In the sam etime if i click another value in that column that row will be highlated only and previous highlated row will be now in normal How can i do.Give me suggestions Thanks in advance

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• Hibernate Discriminator sort

  - by mrvreddy

  I am trying to sort the records when queried on discriminator column. I am doing a HQL/ Criteria query for retrieving all the records. Here is my class: abstract class A { ... } @DiscriminatorValue("B") class B extends A { } @DiscriminatorValue("C") class C extends A { } When I return the records, I want it sorted on the discriminator value.

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• column aliases in postges for calculated values

  - by dubreakkk

  I tried to uses aliases in postgres for this query, but postgres stops and complains that ERROR: column "subtotal" does not exist SELECT SUM(price) AS subtotal, subtotal * 3.0 AS fees, (subtotal + fees) AS total FROM cart You cannot use aliases as part of your next column?

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• Hide Column based up Paramater Selected SSRS

  - by David A

  I would like to set the visiblity of columns based upon the value selected in a paramater. The problem is I do not want a specific paramater to do this (i.e Hide column X True/False) My report has several diffrent "departments" who are only intrested in certain columns. What would be the syntax for example to hide the "Sales" column when the "Customer Care" paramater is set?

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• Check for column name in a SqlDataReader object

  - by Michael Kniskern

  How do I check to see if a column exists in a SqlDataReader object? In my data access layer, I have create a method that builds the same object for multiple stored procedures calls. One of the stored procedures has an additional column that is not used by the other stored procedures. I want to modified the method to accommodate for every scenario. My application is written in C#.

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• <table> column and row style....

  - by jitendra

  I've a <table> which has 10 column and 10 row i want to give different background to 1st and and 3rd column and another different background color to 8th row . is it possible without css class/id

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• New group in New column

  - by cre-johnny07

  I have a multi column report in crystal report.Is there any way to start each new group in new column in Crystal report in the same page?

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• Store java.util.Calendar field into one column

  - by Rasika

  How to store java.util.Calendar field into one column with Datanucleus JDO. By default it is stored into two columns (millisecs, Timezone) with following JDO metadata. field name="startDate" serialized="true" embedded="true" persistence-modifier="persistent" What need to be changed in metadata to store it into single column (Timestamp)? Is it posible query (JDOQL) on calendar field when it is in two clumn?

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• Best way to add a column in mysql query

  - by PHP-Prabhu

  Can any one please let me know that, I need to add a column dynamically when executing mysql query Table: Table1 -------------------------- col1 col2 col3 -------------------------- Test OK Test3 Test OK Test5 Test OK Test6 from the above example i need to introduce "col2" as new column and its value to be as "OK"

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• Should I use multiple column primary keys or add a new colum?

  - by Covar

  My current database design makes use of a multiple column primary key to use existing data (that would be unique anyway) instead of creating an additional column assigning each entry an arbitrary key. I know that this is allowed, but was wondering if this is a practice that I might want to use cautiously and possibly avoid (much like goto in C). So what are some of the disadvantages I might see in this approach or reasons I might want a single column key?

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• What database field should this be?

  - by alex

  I have a table called "Event". A column has "duration"--which is...how long that event lasts. What database type should this be? Integer? (in seconds)? In the future, I will do statements such as: If now() > event.duration THEN don't display the event.

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• Use Excel Table Column in ComboBox Input Range property

  - by V7L

  I asked this in StackOverflow and was redirected here. Apologies for redundancy. I have an Excel worksheet with a combo box on Sheet1 that is populated via its Input Range property from a Dynamic Named Range on Sheet2. It works fine and no VBA is required. My data on Sheet2 is actually in an Excel Table (all data is in the XLS file, no external data sources). For clarity, I wanted to use a structured table reference for the combo box's Input Range, but cannot seem to find a syntax that works, e.g. myTable[[#Data],[myColumn3]] I cannot find any indications that the combo box WILL accept structured table references, though I cannot see why it wouldn't. So, two part question: 1. Is is possible to use a table column reference in the combo box input range property (not using VBA) and 2. HOW?

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• SQL: Select distinct values from 1 column

  - by Parm

  I want to select distinct values from only one column (the BoekingPlaatsId column) with this query: SELECT MAX(BoekingPlaatsId), BewonerId, Naam, VoorNaam FROM table GROUP BY BewonerId, Naam, VoorNaam How do I do that in SQL Server?

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