We are writing a stored procedure responsible for getting a stored procedure name and returning a result containing the stored procedure columns and their data types. However, we bumped into a problem executing a dynamic query to return the results of stored procedure, but we can't store it in a temp table!
You can see our query below:
DECLARE @ProcName VARCHAR(100)='spGetOraganizationsList',
@ParamName VARCHAR(100),@DataType VARCHAR(20),
@Query NVARCHAR(MAX)='EXEC '+'spGetOraganizationsList '
SELECT PARAMETER_NAME,DATA_TYPE
INTO #Tmp
FROM information_schema.PARAMETERS
WHERE SPECIFIC_NAME=@ProcName
DECLARE ParamCursor CURSOR
FOR SELECT * FROM #Tmp
OPEN ParamCursor
FETCH NEXT FROM ParamCursor
INTO @ParamName,@DataType
WHILE @@FETCH_STATUS = 0
BEGIN
SET @Query=@Query+@ParamName+'=Null,'
FETCH NEXT FROM ParamCursor INTO @ParamName,@DataType
END
CLOSE ParamCursor
DEALLOCATE ParamCursor
DROP TABLE #Tmp
EXEC sp_executesql @Query
The thing is I can't store the results of it in a temp table,
and OPENROWSET
does not accept variables.
INSERT INTO SELECT statement reads data from one table and inserts it into an existing table. Such as, if we want to copy the Location table data into a temp table using the INSERT INTO SELECT statement, we have to specify the temporary table explicitly and then insert the data.
First, you need to create a temporary table, and then the table will be available in dynamic SQL. Please refer: CREATE PROC pro1 @var VARCHAR(100)
I think it comes from sql concept that it doesn't trust in result of stored procedures and because of that we cannot select on it or store it in a table by 'making in query table' method. Unless you create a table and define it's columns and sql trust to you and you insert result of it into this table for example take below situation
Create table test (name varchar(10),family varchar(20))
Insert into test
Exec sp-testResult
Now if you define wrong column for your table you will receive query runtime error .actually sql doesn't predict result of sp and leaves it to you to define result of your stored procedure.
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