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Why do I get “Procedure expects parameter '@statement' of type 'ntext/nchar/nvarchar'.” when I try t
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Sounds like you're calling sp_executesql with a VARCHAR statement, when it needs to be NVARCHAR.
e.g. This will give the error because @SQL needs to be NVARCHAR
DECLARE @SQL VARCHAR(100)
SET @SQL = 'SELECT TOP 1 * FROM sys.tables'
EXECUTE sp_executesql @SQL
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Get list of databases from SQL Server
How can I get the list of available databases on a SQL Server instance? I'm planning to make a list of them in a combo box in VB.NET.
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Search text in fields in every table of a MySQL database
I want to search in all fields from all tables of a MySQL database a given string, possibly using syntax as:
24 Answers
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How can one see the structure of a table in SQLite? [duplicate]
How can I see the structure of table in SQLite as desc was in Oracle?
8 Answers
8
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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 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 WHERE.. IN clause multiple columns
I need to implement the following query in SQL Server:
13 Answers
13
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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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