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• What is the difference between JOIN, Inner Join, Left Join and Outer Join.

  - by theband

  What is the difference between JOIN, Inner Join, Left Join and Outer Join. Let me put you on what i know. JOIN Statement is used to join two tables and fetch the result.

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• mysql join with conditional

  - by Conor H

  Hi There, I am currently working on a MySQL query that contains a table: TBL:lesson_fee -fee_type_id (PRI) -lesson_type_id (PRI) -lesson_fee_amount this table contains the fees for a particular 'lesson type' and there are different 'fee names' (fee_type). Which means that there can be many entries in this table for one 'lesson type' In my…

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• SQL Server 22005: Top 1 * for a unique column?

  - by Echilon

  I have data in a table (below), and I need to select the most recent update from each user. Here the data has been sorted by date, so the 'SomeData' column of the most recent unique value of each user. Top 1 SomeData isn't going to work because it will only return for one user. Is this even possible using only SQL? Date SomeData …

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• How to move the files of a replicated database (SQL Server 2008 R2) to a different drive

  - by ileon

  I would appreciate if someone could help me with the following problem: We use two SQL Server 2008 R2 databases under transactional replication: transactional publication with updatable subscriptions. because we run out of disk space we need to move the database files into a new drive. But I don't want to break the replication. What I'm…

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• SQL Server 2008 R2 Reporting Services - The Word is But a Stage (T-SQL Tuesday #006)

  - by smisner

  Host Michael Coles (blog|twitter) has selected LOB data as the topic for this month's T-SQL Tuesday, so I'll take this opportunity to post an overview of reporting with spatial data types. As part of my work with SQL Server 2008 R2 Reporting Services, I've been exploring the use of spatial data types in the new map data region. You can…

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• SQL query for getting count on same table using left outer join

  - by Sasi

  Hi all, I have a table from which i need to get the count grouped on two columns. the table has two columns one datetime column and another one is success value(-1,1,0) What i am looking for is something like this... count of success value for each month month----success-----count 11------- -1 ------- 50 11------- 1 …

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• Dynamically determining table name given field name in SQL server

  - by Salman A

  Strange situation: I am trying to remove some hard coding from my code. There is a situation where I have a field, lets say "CityID", and using this information, I want to find out which table contains a primary key called CityID. Logically, you'd say that it's probably a table called "City" but it's not... that table is called…

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• Help needed in AdventureWorks in a sql query.

  - by vaibhav

  I was just playing with adventureworks database in sqlserver. I got stuck in a query. I wanted to Select all titles from HumanResources.Employee which are either 'Male' or 'Female' but not both. i.e if title Accountant is Male and Female both I want to leave that title. I need only those titles where Gender is either Male or…

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• How do I replace NOT EXISTS with JOIN?

  - by YelizavetaYR

  I've got the following query: select distinct a.id, a.name from Employee a join Dependencies b on a.id = b.eid where not exists ( select * from Dependencies d where b.id = d.id and d.name = 'Apple' ) and exists ( select * from Dependencies c where b.id = c.id and c.name =…

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• MySQL Query Join Table Selecting Highest Date Value

  - by ALHUI

  Here is the query that I run SELECT cl.cl_id, cc_rego, cc_model, cl_dateIn, cl_dateOut FROM courtesycar cc LEFT JOIN courtesyloan cl ON cc.cc_id = cl.cc_id Results: 1 NXI955 Prado 2013-10-24 11:48:38 NULL 2 RJI603 Avalon 2013-10-24 11:48:42 2013-10-24 11:54:18 3 RJI603 Avalon 2013-10-24…

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• MYSQL: How to limit inner join?

  - by Sergii Rechmp

  I need some help with my query. I have 2 tables: all: art|serie sootv: name|art|foo I need to get result like name|serie. My query is: SELECT t2.NAME, t1.serie FROM ( SELECT * FROM `all` WHERE `serie` LIKE '$serie' ) t1 INNER JOIN sootv t2 ON t1.art = t2.art; it works, but sootv table…

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• Oracle SQL outer join query puzzle

  - by user1651446

  So I am dumb and I have this: select whatever from bank_accs b1, bank_accs b2, table3 t3 where t3.bank_acc_id = t1.bank_acc_id and b2.bank_acc_number = b1.bank_acc_number and b2.currency_code(+) = t3.buy_currency and trunc(sysdate) between nvl(b2.start_date, trunc(sysdate)) and nvl(b2.end_date,…

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• Sum of distinc rows after a 1-many table join

  - by Lock

  I have 2 tables that I am joining. Table 1 has 1-many relationship with table 2. That is, table 2 can return multiple rows for a single row of table 1. Because of this, the records of table 1 is duplicated for as many rows as are on table 2.. which is expected. Now, I have a sum on one of the columns from…

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• left join without duplicate values using MIN()

  - by Clipper87

  I have a table_1: id custno 1 1 2 2 3 3 and a table_2: id custno qty descr 1 1 10 a 2 1 7 b 3 2 4 c 4 3 7 d 5 1 5 e 6 1 5 f When I run this query to show the minimum order quantities from every customer: SELECT DISTINCT…

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• Count, inner join

  - by Urosh

  I have two tables: DRIVER (Driver_Id,First name,Last name,...) PARTICIPANT IN CAR ACCIDENT (Participant_Id,Driver_Id-foreign key,responsibility-yes or no,...) Now, I need to find out which driver participated in accident where responsibility is 'YES', and how many times. I did this: Select…

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• Tune SQL Server Express using Profiler?

  - by Glen Little

  I have a SQL Server 2005 database... a copy of it is running in development on a full version of SQL server. Another copy is running in SQL Server 2005 Express on a web server. I've used SQL Profiler and saved a Tuning trace log from activity on the SQL Express copy of the database. I want to…

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• SQL server 2008 R2 installation error

  - by Sonia

  I have a windows 7,32 bit laptop. I am the administrator with all permissions. when I click on the SQL server 2008R2 set up file,it says : "SQL server set up has encountered the following error:Failed to retreive data for this request" click on OK. I have uninstalled all the components of SQL…

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• Tune SQL Server Express using Profiler?

  - by Glen Little

  I have a SQL Server 2005 database... a copy of it is running in development on a full version of SQL server. Another copy is running in SQL Server 2005 Express on a web server. I've used SQL Profiler and saved a Tuning trace log from activity on the SQL Express copy of the database. I want to…

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• cannot at all find sql instance (while installing an asp.net app on IIS)

  - by giddy

  So I'm really not a DBA, I'm an app dev. I had to install my asp.net mvc3 app on my client's(a large company) IIS6 + Win2k3 machine, with absolutely no help from their sysadmins. The final problem now is SQL Server 2008 r2, after figuring out how to create a login from windows, my app and…

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• SQL ERROR: Verify that the instance name is correct and that SQL Server is configured to allow remote connections?

  - by scepak

  I am getting following error while connecting to my local Sql Express. An error has occurred. Details of the exception: A network-related or instance-specific error occurred while establishing a conne ction to SQL Server. The server was not found or was not accessible. Verify that the…

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• SQL Server Intellisense VS. Red Gate SQL Prompt

  Fabiano Amorim is hooked on today's Integrated Development Environments with built-in Intellisense, so he looked forward keenly to SQL Server 2008's native intellisense. He was disappointed at how it turned out, so turned instead to SQL Prompt. Fabiano explains why he prefers to SQL…

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• Problems installing SQL Server 2008 on Windows 7 Pro

  - by Trindaz

  I'm having no luck. I've tried installing SQL Server 2008 Express on my Windows 7 Pro box about 4 times now. Each time it installs the 'setup files required' then does nothing. All I can do is click the 'New ... or Add Features...' link to try starting again but get the same results…

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• verbose error information for MS SQL Server bulk insert

  - by TheObserver

  I'm using SQL Server 2008 Express and I'm doing a bulk insert of data. I'd like to have more verbose error messages, ideally printing the data that failed to be inserted. Is that possible?

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• How can I disable the windows authentication mode of SQl Server

  - by Azhar

  How can I disable the windows authentication mode of SQl Server and restrict it to ask for user and Password every time and no windows authentication. for security purposes

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• DBCC SQL Server 2000 sysindexkeys

  - by Debasish Pramanik

  I have a SQL Server 2000 database. When I run the following command select * from sysindexkeys This display the appropriate records. I then do a DBCC command for the sysindexkeys. It doesn't display anything. Strange there is no page having the sysindexkeys records. Then how…

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