I am trying to insert data into a table based on a variable, but SQL Server is not recognising the table in the variable.
INSERT INTO @tableNameH
SELECT * FROM @tableName;
It this not supported in T-SQL?
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1You are trying to insert into a variable, not a table – Giorgos Betsos Jan 09 '21 at 16:36
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but the variable is the table name ^ – Jan 09 '21 at 16:37
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3You cannot use a variable name as a table name – DavidG Jan 09 '21 at 16:38
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1It is not a table name. Here is table variable DECLARE @InTable TABLE(ID INT NOT NULL, VAL VARCHAR(100)); – Sergey Jan 09 '21 at 16:39
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1And you selected data to be inserted from the same table? – Giorgos Betsos Jan 09 '21 at 16:39
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1Yes as DavidG says, dynamic SQL is the way to go if you want to set the table name at execute time. – Peter Smith Jan 09 '21 at 16:42
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Thank you! I needed the EXEC :) – Jan 09 '21 at 16:43
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1@PeterSmith Then, you know, vote to close... – DavidG Jan 09 '21 at 16:49
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1Careful, the accepted dupe is open to injection. You should be using `QUOTENAME` to properly quote dynamic objects, shown in [this answer](https://stackoverflow.com/a/23317992/2029983). – Thom A Jan 09 '21 at 17:19