Procedure to create a table with a variable number of columns

Question

I\'m trying to make a stored procedure that will create a temporary table A whose columns would be dependent on the number of rows of another table, B. The background for th

Answer 1

You should not do this - instead, make the group name a column in table A as well.

Answer 2

DECLARE @sSQL varchar(max),
  @ColumnName CHAR(128)

DECLARE TableCursor CURSOR FOR
  SELECT ColumnName FROM GroupTable

SET @sSQL = 'CREATE TABLE ##NewTempTable ('

OPEN TableCursor

FETCH NEXT FROM TableCursor INTO @ColumnName

WHILE @@FETCH_STATUS = 0
BEGIN 

SET @sSQL = @sSQL + RTRIM(@ColumnName) + ' CHAR(10) ,'

FETCH NEXT FROM TableCursor INTO @ColumnName

END

CLOSE TableCursor

DEALLOCATE TableCursor

SET @sSQL = @sSQL + ')'

EXEC (@sSQL)

SELECT * FROM ##NewTempTable

I hope this helps. In the DECLARE CURSOR, you will need to change the "ColumnName" and "TableName" to your actual column/table that you are querying.