针对你提出的“invalid function group_concat”问题,以下是详细的解答: 确认数据库类型和版本是否支持GROUP_CONCAT函数: GROUP_CONCAT函数是MySQL中的一个聚合函数,用于将分组中的多个值连接成一个字符串。 如果你在使用PostgreSQL或Hive等其他数据库时遇到“invalid function group_concat”错误,这是因为这些数据库不...
Encountering an error while attempting to sum the grand total for each month within all contact groups. The query results in the following error message: SQLSTATE[HY000]: General error: 1111invalid use of group function. The query includes the following statement: select GROUP_CONCAT(sum(documents...
DROP FUNCTION IF EXISTS fa_directionna $$ CREATE FUNCTION fa_directionna (idPel INT) RETURNS VARCHAR(255) BEGIN DECLARE direction VARCHAR(255); DECLARE NyA VARCHAR(255); DECLARE counter INT; SELECT CONCAT(tbldirectores.nombre,tbldirectores.apellidos) ...
=WM_CONCAT_IMPL_CLOB_NULL_LHR(NULL);RETURNODCICONST.SUCCESS;END;MEMBERFUNCTIONODCIAGGREGATEITERATE(SELFINOUTWM_CONCAT_IMPL_CLOB_NULL_LHR,P1INCLOB)RETURNNUMBERISBEGINIF(CURR_STRISNOTNULL)THENCURR_STR:=CURR_STR||P1;ELSECURR_STR:=P1;ENDIF;RETURNODCICONST.SUCCESS;END;MEMBERFUNCTIONODCIAGGREGATETERMINATE...
(SELECT GROUP_CONCAT(COUNT(q.i)) FROM test) AS i -> FROM q; ERROR 1111 (HY000): Invalid use of group function mysql> mysql> DROP VIEW q; Query OK, 0 rows affected (0.00 sec) mysql> DROP TABLE test; Query OK, 0 rows affected (0.01 sec) // 5.7.2-m12 mysql> use test; Data...
CREATE TABLE student (id int(11) DEFAULT NULL, student_name varchar (20) DEFAULT NULL, test_score int (11) DEFAULT NULL ) DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin; select (SELECT @ids:=GROUP_CONCAT(test_score) FROM student where find_in_set(student_name,@ids)) from student; This...
RETURNNUMBERISBEGINRETURNVALUE:=CURR_STR;RETURNODCICONST.SUCCESS;END;MEMBERFUNCTIONODCIAGGREGATEMERGE(SELFINOUTWM_CONCAT_IMPL_CLOB_NULL_LHR,SCTX2INWM_CONCAT_IMPL_CLOB_NULL_LHR)RETURNNUMBERISBEGINIF(SCTX2.CURR_STRISNOTNULL)THENSELF.CURR_STR:=SELF.CURR_STR||SCTX2.CURR_STR;ENDIF;RETURNODCICONST....
2、自己创建WM_CONCAT函数 CREATEORREPLACETYPE wm_concat_impl AUTHIDCURRENT_USERASOBJECT ( curr_strVARCHAR2(32767), STATICFUNCTIONodciaggregateinitialize (sctxINOUT wm_concat_impl)RETURNNUMBER, MEMBERFUNCTIONodciaggregateiterate ( SELFINOUT wm_concat_impl, ...
I'm not sure if this is the proper forum to post this, but I did not see anything better. I keep getting an invalid use of group function error. Most people that get this error seem to be trying to use an aggregate function in a WHERE clause instead of a HAVING clause. However, ...
Invalid use of group function. Could you fix the below query? SELECT IFNULL(MIN(CONCAT(MAX(CASE WHEN T20.PRM_TP_CD = '2' THEN 'Y' ELSE 'N' END ) , MAX(CASE WHEN T20.PRM_TP_CD = '1' THEN 'Y' ELSE 'N' END ) ) ) , 'NN' ) RT_FLAG FROM TCCM...