USE videoteca; DELIMITER $$ DROP FUNCTION IF EXISTS fa_directionna $$ 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) ...
The two first queries behave correctly, but the third gives an error: ERROR 1111 (HY000): Invalid use of group function How to repeat: CREATE TABLE test (a INT); INSERT INTO test VALUES (1); SELECT (SELECT GROUP_CONCAT(COUNT(q.a)) FROM test) AS i FROM test AS q; SELECT (SELECT...
0)) AS avg FROM t_emp; SUM 函数 SUM 函数用于求和，只能用户数字类型，字符类型的统计结果为 0...
Improper Usage of Group Function in MySQL: Error Code 1111, Improper usage of group function causing MySQL error #1111, Invalid Use of Group Function Error Occurs in SQL Query with GROUP_CONCAT and SUM Functions
2、GROUP_CONCAT()函数 函数的值等于属于一个组的指定列的所有值,以逗号隔开,并且以字符串表示。 例1:对于每个球队,得到其编号和所有球员的编号 mysql> select teamno,group_concat(playerno) -> from MATCHES -> group by teamno; +---+---+ | teamno | group_concat(playerno) | ...
-- 查询分组之后的部门名称以及每个部门下的所有成员的名字 -- group_concat : 获取到分组之后具体的字段的值 select post,group_concat(name) from emp group by post; select post,group_concat(name) as "人员名单" from emp group by post; # 输出结果 mysql> select post,group_concat(name) as "...
2、GROUP_CONCAT()函数 函数的值等于属于一个组的指定列的所有值,以逗号隔开,并且以字符串表示。 例1:对于每个球队,得到其编号和所有球员的编号 mysql> select teamno,group_concat(playerno) -> from MATCHES -> group by teamno; +---+---+ | teamno | group_concat(playerno) | ...
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...
GROUP_CONCAT(distinct id ORDER BY id DESC SEPARATOR ‘_’) 好像是用过的 这个报错:Invalid function GROUP_CONCAT 可能是版本问题:当前hive版本:hive-common-2.1.1-cdh6.2.0 apache-hive-1.2.1-也没有这个函数 1.2.2也没有 我记错了,吧 1.
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...