Hi All,
I am selecting data from a source table and after some modification inserting into a target table. Source and target table name are available at run time. You can say only source table structure is fixed.
I have crated a pl/sql table of type source record and inserting record by record in target table using execute immediate. But I am not able to write
EXECUTE IMMEDIATE string USING pl_sql_table(index); and getting error as
PLS-00457: expressions have to be of SQL types
Please see the part of code below. Is it possible to use FORALL with dynamic sql like
FORALL pl_sql_table.FIRST .. pl_sql_table.COUNT
EXECUTE IMMEDIATE .... pl_sql_table(j); -- Like this.
Please suggest why I am not able to write record here. I also want to replace 'INSERT in a loop' with a single INSERT statement out of the loop, to upload whole pl_sql table into target table in one go.
Thanks,
Ravi
DECLARE
TYPE rec_tab_CMP IS RECORD
(
model_id NUMBER(38),
absolute_rank NUMBER(5)
);
v_rec_tab_CMP rec_tab_CMP;
TYPE t_rec_tab_CMP IS TABLE OF v_rec_tab_CMP%TYPE INDEX BY BINARY_INTEGER;
v_records_CMP t_rec_tab_CMP;
rc SYS_REFCURSOR;
v_old_table_name VARCHAR2(30); -- passed from parameter
v_new_table_name VARCHAR2(30); -- passed from parameter
dyn_str VARCHAR2(500);
v_columns_str VARCHAR2(200) := ' model_id, absolute_rank ';
BEGIN
EXECUTE IMMEDIATE 'CREATE TABLE '|| v_new_table_name || ' AS SELECT * FROM ' || v_old_table_name ||' WHERE 1 = 2 ' ;
OPEN rc FOR 'SELECT '|| v_columns_str ||' FROM '|| v_old_table_name;
FETCH rc BULK COLLECT INTO v_records_CMP;
FOR j IN 1..v_records_CMP.COUNT
LOOP
v_records_CMP(j).model_id := 1; -- Do someting here, This thing can be performed in SQL stmt directly.
dyn_str := 'INSERT INTO '|| v_new_table_name ||' ( '|| v_columns_str || ' ) VALUES (:1, :2) ';
EXECUTE IMMEDIATE dyn_str USING v_records_CMP(j).model_id ,
v_records_CMP(j).absolute_rank ;
-- Here in place of two columns I want to use one record like
-- EXECUTE IMMEDIATE dyn_str USING v_records_CMP(j);
-- But it is giving me error like
-- EXECUTE IMMEDIATE dyn_str USING v_records_st(j);
-- PLS-00457: expressions have to be of SQL types
--
END LOOP;
CLOSE rc;
END;
/