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ORA-00934 group function is not allowed here

ORA-00934 group function is not allowed here is one of the common messages we often get while aggregating data.

ORA-00934 group function is not allowed here

Causes of ORA-00934 group function is not allowed here

This error happens when you are trying to use the where clause to restrict groups

CREATE TABLE "EMP_DATA"
( "EMP_NO" NUMBER(4,0),
"EMP_NAME" VARCHAR2(10),
"JOB" VARCHAR2(9),
"MGR" NUMBER(4,0),
"HIREDATE" DATE,
"SALARY" NUMBER(7,2),
"COMM" NUMBER(7,2),
"DEPT_NO" NUMBER(2,0)
);
insert into emp_data values( 1000, 'BILL', 'MANAGER', 7839, to_date('1-5-2007','dd-mm-yyyy'), 2850, null, 10 );
insert into emp_data values( 1001, 'MATT', 'MANAGER', 7839, to_date('9-6-2008','dd-mm-yyyy'), 2450, null, 10 );
insert into emp_data values( 1002, 'SCOTT', 'ANALYST', 7566, to_date('9-6-2012','dd-mm-yyyy'), 3000, null, 20 );
insert into emp_data values( 1003, 'ARNOLD', 'ANALYST', 7566, to_date('9-6-2017','dd-mm-yyyy'), 3000, null, 20 );
insert into emp_data values( 1004, 'BANNER', 'ANALYST', 7567, to_date('9-7-2017','dd-mm-yyyy'), 4000, null, 20 );
insert into emp_data values( 1005, 'TOM', 'ANALYST', 7567, to_date('9-7-2017','dd-mm-yyyy'), 4000, null, 30 );
commit;

select dept_no,avg(salary) from emp_data where avg(salary) > 1000 group by dept_no;

select dept_no,avg(salary) from emp_data where avg(salary) > 1000;
              *
Error at line 1
ORA-00934: group function is not allowed here

Checklist to run to resolve the ORA-00934 group function is not allowed here

This error happens when you are trying to use the where clause to restrict groups. The right way to restrict groups is by Having clause. So the correct query is

select dept_no,avg(salary) from emp_data  having avg(salary) > 1000 group by dept_no;

Let’s see some more examples

(1) select dept_no, count(*) from emp_data where count(*) > 1 group by dept_no;
Error at line 1
ORA-00934: group function is not allowed here.

The correct way is
select dept_no, count(*) from emp_data having count(*) > 1 group by dept_no;
(2)select emp_no,salary from emp_data where salary=max(salary);
Error at line 1 
ORA-00934: group function is not allowed here.

The correct way is
select emp_no,salary from emp_data where salary=(select max(salary) from emp_data);

I hope you like these simple tips on ORA-00934 group function is not allowed here

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https://docs.oracle.com/javadb/10.8.3.0/ref/rrefsqlj32654.html

2 thoughts on “ORA-00934 group function is not allowed here”

  1. SET SERVEROUTPUT ON SIZE 100000

    DECLARE

    ipsupply_sequence_number NUMBER;
    iprevenue_type_code NUMBER;
    ipRECOGNISED NUMBER;
    lv_current NUMBER;
    ipREVENUE_AMOUNT NUMBER;
    lvcount1 number := AMOUNT_RECOGNISED_TO_DATE;
    lvcount2 number;
    lvcount3 number :=lvcount1-lvcount2;

    lv_user_exception EXCEPTION;

    ————————————–
    /*** LIVE ****/
    ————————————–
    PROCEDURE live_status(ipcontract_number IN cm_contract.contract_number%TYPE,
    ipcash_flow_amount in CM_CONTRACT_CASHFLOW.cash_flow_amount%TYPE,
    ipAMOUNT_RECOGNISED_TO_DATE in cm_contract_rev_balance.AMOUNT_RECOGNISED_TO_DATE%TYPE,
    ipREVENUE_AMOUNT in CM_CONTRACT_REVENUE.REVENUE_AMOUNT%TYPE)

    IS
    BEGIN

    SELECT current_version INTO lv_current FROM cm_contract
    WHERE country_code = ‘039’
    AND company_code = ‘0391’
    AND contract_number = ipcontract_number;

    SELECT contract_number,sum(REVENUE_AMOUNT) INTO lvcount2 FROM CM_CONTRACT_REVENUE

    having country_code = ‘039’
    AND company_code = ‘0391’
    AND contract_number = ipcontract_number
    and version_number=lv_current
    and revenue_type_code=23 group by contract_number ;

    IF lvcount3 0 then

    UPDATE cm_contract_revenue
    set REVENUE_AMOUNT = REVENUE_AMOUNT + lvcount3
    WHERE country_code = ‘039’
    AND company_code = ‘0391’
    AND contract_number = ipcontract_number
    and version_number = lv_current
    and revenue_type_code=23
    and REVENUE_DATE = max(REVENUE_DATE);

    dbms_output.put_line(SQL%ROWCOUNT ||’ Records got updated’);
    else
    dbms_output.PUT_LINE (‘not updated’);
    end if;

    END live_status;

    /******************** Main Block ********************************/

    BEGIN

    live_status(‘0000000002665008′,’2524′,’4400′,’13.51’);


    EXCEPTION
    WHEN lv_user_exception THEN
    ROLLBACK;
    WHEN OTHERS THEN
    ROLLBACK;
    dbms_output.PUT_LINE(‘Error occurred while running script.’
    || SQLERRM ||’Please report to Call Resolver.’);

    END;
    /

    i have run this script but still error showing PL/SQL: ORA-00934: group function is not allowed here please help on this to solve

    1. hi

      i think this query is giving issues
      SELECT contract_number,sum(REVENUE_AMOUNT) INTO lvcount2 FROM CM_CONTRACT_REVENUE

      having country_code = ‘039’
      AND company_code = ‘0391’
      AND contract_number = ipcontract_number
      and version_number=lv_current
      and revenue_type_code=23 group by contract_number ;

      I am not sure why you are using having here

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