• bgrossnickle (8/13/2013)


    I am rying to run a TSQL SELECT Count(*) that has a @Tablename variable in it.

    My Tablename name needs to be variable and I will build it on the fly. All I want to know if if there is data in the table.

    --Tried this but it did not work because of the @Database

    Declare @Database varchar(20)

    Set @Database = 'TDSTEP'

    Declare @RowCount int

    SELECT @RowCount = Count(*) FROM @Database

    Print @RowCount

    --Tried this but it did not work because of the @RowCount

    Declare @Database varchar(20)

    Set @Database = 'TDSTEP'

    Declare @RowCount int

    declare @SQL as varchar(max)

    set @SQL = 'SELECT @RowCount = Count(*) FROM ' + @Database

    exec (@SQL)

    How can i get a variable TableName and yet interigate the number of rows returned?

    Do you need this to use a variable for some reason?

    You can do this with something like this.

    Declare @Database varchar(20)

    Set @Database = 'YourTableNameHere'

    Declare @RowCount int

    declare @SQL as varchar(max)

    set @SQL = 'SELECT Count(*) FROM ' + @Database

    declare @MyCount table(MyRowCount int)

    insert @MyCount

    exec (@SQL)

    select * from @MyCount

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