How to declare a cursor after BEGIN?
28,316
Solution 1
I want to know if i can declare a cursor after begin
Not exactly. But you could use a cursor for loop instead of declaring an explicit cursor.
For example,
FOR i IN (SELECT distinct MID from table_a WHERE AID = V_AID ORDER BY MID)
LOOP
<do something>
END LOOP;
But anyway, this would be slower as row-by-row is slow-by-slow. I don't see a need of procedure at all. If you really need to do it in PL/SQL then consider BULK COLLECT.
And how can i export the result of the plsql to an excel sheet because i ahev to run this procedure as a job.
I don't see a need of PL/SQL in that case. You could simply use SPOOL in SQL*Plus.
For example,
sqlplus user/pass@service_name
<required formatting options>
SPOOL /location/myfile.csv
SELECT distinct MID from table_a WHERE AID = V_AID ORDER BY MID;
SPOOL OFF
Solution 2
Maybe you are looking for this:
create or replace PROCEDURE MASC (V_AMSPROGRAMID VARCHAR2) AS
V_MID VARCHAR2(50);
V_SID VARCHAR2(50);
CURSOR C1 IS
SELECT distinct MID from table_a WHERE AID = V_AID
ORDER BY MID;
CURSOR C2 IS
SELECT DISTINCT SID INTO V_SID FROM table_b WHERE MID = V_MID
ORDER BY MID;
BEGIN
...
or
create or replace PROCEDURE MASC (V_AMSPROGRAMID VARCHAR2) AS
V_MID VARCHAR2(50);
V_SID VARCHAR2(50);
CURSOR C1 IS
SELECT distinct MID from table_a WHERE AID = V_AID
ORDER BY MID;
CURSOR C2(v in NUMBER) IS
SELECT DISTINCT SID INTO V_SID FROM table_b WHERE MID = v
ORDER BY MID;
BEGIN
OPEN C1;
...
OPEN C2(V_MID);
...
Author by
olivia
Updated on January 05, 2022Comments
-
olivia over 2 years
I want to know if a cursor can be declared after
BEGIN
.And how can I export the result of the plsql to an Excel sheet, because I have to run this procedure as a job.
CREATE OR REPLACE PROCEDURE masc(v_amsprogramid VARCHAR2) AS v_mid VARCHAR2(50); v_sid VARCHAR2(50); CURSOR c1 IS SELECT DISTINCT mid FROM table_a WHERE aid = v_aid ORDER BY mid; BEGIN OPEN c1; LOOP FETCH c1 INTO v_mid; EXIT WHEN c1%NOTFOUND; DECLARE CURSOR c2 IS SELECT DISTINCT sid INTO v_sid FROM table_b WHERE mid = v_mid; BEGIN OPEN c2; LOOP FETCH c1 INTO v_mid; EXIT WHEN c1%NOTFOUND; dbms_output.PUT_LINE('MID : ' || v_mid); dbms_output.PUT_LINE('Sid : ' || v_sid); END LOOP; CLOSE c2; END LOOP; CLOSE c1; END masc;