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Can you have if-then-else logic in SQL? [duplicate]
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You can make the following sql query
IF ((SELECT COUNT(*) FROM table1 WHERE project = 1) > 0)
SELECT product, price FROM table1 WHERE project = 1
ELSE IF ((SELECT COUNT(*) FROM table1 WHERE project = 2) > 0)
SELECT product, price FROM ...
Measure the time it takes to execute a t-sql query
I have two t-sql queries using SqlServer 2005. How can I measure how long it takes for each one to run?
6 Answers
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Sql Server equivalent of a COUNTIF aggregate function
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(I know the OP asked about MS SQL, but just a tiny comment for SQLite users doing the same thing) SQLite has no ISNULL, instead you can do CASE WHEN myColumn IS NULL, or use ifnull ( stackoverflow.com/a/799406/1861346 )
– Matt
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SQL WHERE.. IN clause multiple columns
I need to implement the following query in SQL Server:
13 Answers
13
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SQL exclude a column using SELECT * [except columnA] FROM tableA?
... - especially because grouping will be involved.
– VISQL
Oct 9 '12 at 21:41
2
Very nice. Sure so...
SQL (MySQL) vs NoSQL (CouchDB) [closed]
...en things like a lot of their messages, comments etc. I have always used MySQL before but now I am minded to try something new like couchdb or similar which is not SQL.
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How to see the values of a table variable at debug time in T-SQL?
Can we see the values (rows and cells) in a table valued variable in SQL Server Management Studio (SSMS) during debug time? If yes, how?
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Can we have multiple “WITH AS” in single sql - Oracle SQL
...d a very simple question: Does oracle allow multiple "WITH AS" in a single sql statement.
4 Answers
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Connection to SQL Server Works Sometimes
...same error message.
To enable TCP/IP for additional IP addresses:
Start Sql Server Configuration Manager
Open the node SQL Server Network Configuration
Left-click Protocols for MYSQLINSTANCE
In the right-hand pane, right-click TCP/IP
Click Properties
Select the IP Addresses tab
For each listed IP...
How do I create a unique constraint that also allows nulls?
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SQL Server 2008 +
You can create a unique index that accept multiple NULLs with a WHERE clause. See the answer below.
Prior to SQL Server 2008
You cannot create a UNIQUE constraint and allow NULLs. You need set a default v...