Transact-SQL (T-SQL) is a dialect of SQL used by Microsoft SQL Server and SAP's Sybase.

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7
votes
4answers
1k views

Returning rows where all non-NULL values are equal

Is there a simpler T-SQL construct for "all of these columns to be equal (NULLs ignored) on a row" - effective I want to say: WHERE MIN(a, b, c) = MAX(a, b, c) OR COALESCE(a, b, c) IS NULL this ...
1
vote
2answers
503 views

How to link each column in sql?

I have been working around on a query given by one of my developers who works on crystal reports as a junior DBA, I always like to help them even though I am busy with other things as it will increase ...
3
votes
1answer
344 views

Query Performance Issue

I have this below query which is behaving bit weird . well Weird in the sense that I couldn't find complete explanation for this. Version : Sql Server 2008 R2 Enterprise No fragmentation . ...
4
votes
1answer
74 views

SP for Restoring Database and performing other tasks on it

I am creating a stored procedure for our QA dept that will do the following: Accept specific inputs to generate a consistent name, restore a database (giving it the generated name,) set the db up for ...
0
votes
0answers
575 views

RAND in T-sql function

Can any one tell why t-sql not allowing using RAND function in side a function SELECT CAST (RAND() * 10000000 as varchar(20)) the error is Invalid use of a side-effecting operator 'rand' ...
1
vote
1answer
59 views

Does implicit casting negatively affect index usage?

I have a query similar to the following: SELECT id FROM MyTable WHERE eventCount > eventCutoff * eventFactor eventCount and eventCutoff are defined as a smallint, and eventFactor as a float. I ...
0
votes
1answer
318 views

Having trouble with a T-SQL scalar variable during a create table [closed]

I am still a beginner, but I am having trouble with a T-SQL scalar variable during a create table. Can anyone tell me what is wrong with this script? -- T-SQL MSSQL SET NOCOUNT ON DECLARE @tt = ...
3
votes
2answers
301 views

Find top by values by percents using range in SQL Server

What will be easier way to group records by range of percents. Here what I try to accomplish Select top percents between 50 and 75 * from myTable order by PKI Here is way I did this but I have ...
4
votes
1answer
4k views

SQL Server 2012 is putting [brackets] around Table and Column Names

Is there anyway to turn that off? I'm unable to find anything in options, and they're really a distraction.
4
votes
2answers
219 views

Performance on SQL Join

I have a query which takes ages to run mainly due to a join between 2 tables on a PK and FK. The Key is prefixed with 2 letters (which is always the same, RN) followed by 7 digits So RN1234567 for ...
3
votes
3answers
5k views

Inserting rows into other table whilst preserving IDENTITY

I'm performing ETL logic on a SQL Server table. I'm going to be synchronizing data from one table to another. For all of the records that need to be added to the target table based on the source ...
16
votes
2answers
2k views

Why do wildcards in GROUP BY statements not work?

I am trying to make the following SQL statement work, but I get a syntax error: SELECT A.*, COUNT(B.foo) FROM TABLE1 A LEFT JOIN TABLE2 B ON A.PKey = B.FKey GROUP BY A.* Here, A is a wide table ...
1
vote
1answer
709 views

How to split the comma separated list in the stored procedure

I am working on small module in which we pass the column name as comma-separated string to a stored procedure. In the stored procedure, we want to separate the column names out.
4
votes
1answer
145 views

Is there a compact way to use a NOT IN (1,2,3) syntax when setting a variable?

Expressions like NOT IN (1,2,3) are valid in a where clause: SELECT foo FROM bar WHERE ((record_type NOT IN (2, 3, 7, 18, 19, 20, 21,12,13,22)) However if I want to move an elaborate expression ...
10
votes
1answer
772 views

Forcing an index spool

I know its something that should be avoided for performance reasons, but am trying to show a condition where it appears as a demo on how to make sure it does not appear. However, I end up with a ...
-3
votes
3answers
4k views

Join tables on a partial string match

input: I have a table containing (any number of) user-supplied strings: ╔═══════╗ ║ Value ║ ╠═══════╣ ║ To ║ ║ An ║ ╚═══════╝ And a table of user details: ╔════════╦══════════╗ ║ UserID ║ ...
1
vote
1answer
2k views

SQL Server Full-Text Indexer with stoplists/stopwords

As I'm working on a graduate project (Textmining with SQL Server 2012 Semantic Search) I run into a situation where I need to post a question on this website, hoping someone can help me. This ...
1
vote
2answers
670 views

Bitwise operations in TSQL

Take the following code: Declare @a integer set @a = 0 set @a = @a | cast (1 as BINARy) set @a = @a | cast (100 as BINARy) select cast (@a as integer) Now, shouldn't the output of this code be 5 ? ...
6
votes
3answers
1k views

Dynamic database reference in T-SQL scripts

We have a set of databases (development, QA and production, dev-foo & dev-bar, qa-foo & qa-bar and just foo & bar respectively). Inside foo family of databases there's a view that should ...
4
votes
1answer
332 views

T-SQL and GPS co-ordinates

I'm looking to store GPS co-ordinates in an MS SQL Server DB for location matching of users with GPS-enabled mobile phones. I've read about STDistance on MSDN, but it only appears to exist in SQL ...
3
votes
2answers
6k views

Create job to send alert using sp_send_dbmail when table value greater than x

PROBLEM The SMScounter.Counter is used to accumulate usage from a service. The service has a programmatic cap of 1000. I would like to alert users when this cap is breached. TABLE CREATE CREATE ...
0
votes
1answer
74 views

modify T-SQL to get results

I am an amateur. I am trying the following select * from [dbo].[AccessFeeDetail] where LastLoginDate >= '10/15/2012 00:00:00.000', jobname not like 'Uptest_%' I am making a mistake on where ...
1
vote
1answer
396 views

Stuff function in T-SQL

select STUFF( STUFF(RIGHT('000000' + CAST([run_duration] AS VARCHAR(6)), 6) , 3, 0, ':') , 6, 0, ':') AS [LastRunDuration (HH:MM:SS)] from sysjobhistory The query I have ...
3
votes
2answers
1k views

Which is better for long term database scalability: adding columns or having key/value store

For application, which has few (5-10) settings at the moment but will have a lot more (up to 100) in the future which would be better approach: to add new columns to settings table every time new ...
1
vote
0answers
116 views

TSQL Trigger Incorrect Syntax

Im a SQL noob but here goes - I have a trigger in SQL which is giving me an incorrect syntax error E.G: INSERT INTO aTable ( tTypeId, opId, inserted.Id ) SELECT 3, 0, inserted.Id ...
21
votes
7answers
38k views

How can I tell if a SQL Server database is still being used?

We're looking to decommission a SQL Server instance which has a couple databases still remaining on it. How can I tell if they are still being used by users or a web application? I found a forum ...
6
votes
2answers
1k views

T SQL Table Valued Function to Split varbinary(max) into 16byte GUIDs

I am trying to write a function which will split a varbinary(max) field into a table with 16 byte GUIDs, but am struggling. I haven't been able to find any examples or walkthroughs on how to do this ...
0
votes
3answers
501 views

Pivoting row contents to produce one dimensional result

I have a table with a varchar column containing pipe-delimited values For example: Row 1 Column 1 = a|b|e|gg|foo Row 2 Column 1 = oV|foo|do Row 3 Column 1 = boop How can I query this to return ...
7
votes
4answers
1k views

Create a plan guide to cache (lazy spool) CTE result

I normally create plan guides by first constructing a query that uses the correct plan, and copying it across to the similar query that doesn't. However, that is sometimes tricky, especially if the ...
3
votes
2answers
6k views

How to map another server through SQL Server Management Studio

I am trying to map another server by giving the command EXEC xp_cmdshell 'NET USE H:\568.256.8.358\backup_147 1234abc /USER:cranew /PERSISTENT:yes' I got an error with this network path not ...
3
votes
1answer
459 views

How are foreign keys resolved when creating tables in batch?

I am creating a database version management tool with the goal of being able to recreate a database from scratch using text/sql files contained in source control. As part of establishing a baseline ...
0
votes
1answer
647 views

Query performance and join hints, plan cost, and duration

Having some trouble identifying why a query's duration would decrease when using OPTION (HASH JOIN) or OPTION (MERGE JOIN), although plan cost increases. Background I have a reporting database using ...
4
votes
1answer
786 views

Calculating Median Value within a Group By

I have a SPROC which calculates the Mean duration of a request / response cycle within 10 minute intervals. This works well and suits my needs for plotting charts. What I would like to do next is ...
4
votes
1answer
3k views

How can I create a stored procedure using xp_fixeddrives?

I need a stored procedure to check the free space in 2 linked servers .(the servers are linked manually) .I have comed up with a query like this and using sql server 2008 ALTER PROCEDURE freespace AS ...
2
votes
2answers
219 views

T-SQL Naming Standard

Is there a recommended (official or not) style from Microsoft regarding naming and casing in T-SQL? If there isn't one from Microsoft then is there one with broad acceptance?
1
vote
1answer
753 views

bulk insert from file

I am often requested to upload data from file (let's say csv) into a Sql Server 2008 db. I would like to use BULK INSERT, but I have no access to the db server file system. Questions is there a ...
0
votes
6answers
805 views

Equivalent of CHARINDEX OR IN for ints

I want the equivalent of this for ints. --Valid SQL DECLARE @users AS nvarchar(50) SET @users = 'Joe ,Bob,Fred,Tim' --1,2,8,23 select * FROM Person AS p WHERE CHARINDEX(p.sFullName,@users) > 0 ...
0
votes
2answers
216 views

Print variable of same datatype

I am looking for to print two variables of same datatype I have something like this declare @one int ,@two int set @one=1 set @two=2 print @one+@two obviously it will give a result 3 but I need ...
4
votes
2answers
478 views

T-SQL Syntax error copying views dynamically

I'm creating a stored procedure to copy all views from one database to another using the following code. ALTER PROCEDURE [dbo].[spCreateViews] (@SourceDB NVARCHAR(200), @DestinationDB ...
3
votes
1answer
5k views

To use or not use ISNULL(NULLIF(Field1, ''))?

In the past I've seen use of something such as SELECT ISNULL(NULLIF(Field1, ''), 'NewValue') to tersely get a fallback value. However, since the advent of CASE in TSQL, we've favored something ...
5
votes
1answer
226 views

Can We Perform an “Up-To-The-Minute Restore” After Taking Transaction Log Backups?

The Setup: Say we have a Database in Full Recovery Mode that does a nightly Database Backup, Transaction Log Backup, and Transaction Log Shrink. Now the Transaction Log grows so quickly during the ...
4
votes
2answers
1k views

Restore all applicable files in a backup device in T-SQL

I'm using SQL Server (2008 R2 in this case) and I am backing up my databases into backup devices (one per database). Every Sunday the device is overwritten with a new full backup, every night a ...
7
votes
3answers
4k views

Can I change table structure in a transaction and then roll it back if there is an error?

I have some ALTER TABLE statements that I am running. Not all of them work (they are the result of running SQL Data Compare) and I want to group them in some transactions and roll back the statements ...
1
vote
1answer
1k views

Trying to Build TreeView Query in T-SQL

I have parent records in two tables, Table1 and Table2. Some records in Table3 are children of Table1, and some are children of Table2. I would like to build a query that I can use to populate a ...
8
votes
3answers
3k views

Using Row_Number to find consecutive row count

I have this column of ints that represent an occurrence of a signal and I'm trying to add a column that shows the count of consecutive row If my data looks like this 724 727 728 733 735 737 743 747 ...
5
votes
1answer
784 views

Query performance while using sqlcmd [duplicate]

Possible Duplicate: Running queries with SQLCMD vs. Running queries with SSMS I have a number of scripts that query the data from different tables and consequently update them. I have ...
6
votes
3answers
4k views

RETURN statement before DEALLOCATE CURSOR

Question about use of Cursors in combination with RETURN in a SQL Server 2008 Stored Procedure Consider this example: CREATE PROCEDURE [dbo].[test] @ReturnEarly BIT = 0 AS BEGIN SET NOCOUNT ...
1
vote
1answer
491 views

Using sys.dm_os_performance_counters and DIFF to display logins per second

PROBLEM Running my script below i can see the number of logins as an accumulated number to my instance: SELECT cntr_value AS [LoginsPerSec] FROM sys.dm_os_performance_counters WHERE ...
2
votes
2answers
3k views

Cast NTEXT to INT for calculation and comparison

I need to convert an NTEXT column to an INT so I can perform some checks on it. The first check would be is value = 0, and the second would be if it was an even or an odd number. I've got this ...
1
vote
1answer
750 views

T-SQL, show a set of rows (specific column) as a field, for a better desc, please see the table relationship

I have been having a problem for quite a while now, that I can show with a sample of 5 tables (I'm actually dealing with more than 5!): -------------------------------- shipments ...