create table apples(variety char(10) primary key, price int); insert into apples values('fuji', 5), ('gala', 6); update apples set price = (select price from apples where variety = 'gala') where variety = 'fuji'; 错误提示是:ERROR 1093 (HY000): You can't specify target table 'a...
查询结果添加到另一张表中 INSERT INTO B (B1,B2,B3) SELECT A1,A2,A3 FROM A 查询结果添加到另一张表中 一般的写法是: UPDATE A SET A3 = (SELECT B3 FROM WHERE B1 = 1 ) 这样的写法Oracle和SQLServ ... mysql 子查询 oracle 加锁 锁表 mysql 多表查询并更新 mysql多表查询语句 mysql中的多...
1. Provide CREATE TABLE statements for each of the relevant tables 2. Provide a small but representative dataset for each of the tables, as a set of INSERT statements 3. Provide the resultset you'd expect from your query. 4. Provide the result of SELECT VERSION(); B. Group-wise...
报出“1093 - You can't specify target table 't' for update in FROM clause”的异常。意思,意思大约为,你不能指定更新的目标表在FROM子句中(英文不好,即使认识各个单词,串起来就不行了。。。) 就如文档所述“Currently, you cannot update a table and select from the same table in a subquery.”,...
Bug #23353 cannot update a table and select from the same table in a subquery Submitted: 17 Oct 2006 1:49Modified: 17 Oct 2006 7:09 Reporter: Fauzan Badriawan Email Updates: Status: Verified Impact on me: None Category: MySQL Server: DMLSeverity: S4 (Feature request) Version: Future...
Error Code: 1093. You can't specify target table 'sys_user' for update in FROM clause 0.000 sec 1. 原因: mysql中不支持子查询更新,准确的说是更新的表不能在set和where中用于子查询。那串英文错误提示就是说,不能先select出同一表中的某些值,再update这个表(在同一语句中)。
SELECT. For more information, see Section 15.1.1, “Atomic Data Definition Statement Support”. You cannot use FOR UPDATE as part of the SELECT in a statement such as CREATE TABLE new_table SELECT ... FROM old_table ... If you attempt to do so, the statement fails. ...
mysql> select * from t20200709 ;+---+---+| id | name |+---+---+| 1 | name4 |+---+---+1 rows in set (0.00 sec)之后执行 SQL 语句 update t20200709 set name =1 where id = 1;mysql> update t20200709 set name =1 where id = 1;Query OK, 1 row affected (0.00 se...
["parenthesis_removal"],"expanded_query":"/* select#1 */ select `a`.`order_id` AS `order_id`,`a`.`payment` AS `payment`,`a`.`payment_type` AS `payment_type`,`a`.`status` AS `status`,`a`.`create_time` AS `create_time`,`a`.`update_time` AS `update_time`,`a`.`...
You have to create a sub-qury where MySQL selects the entire table into a temporary table then scans the temporary table for the iformation it requires! We have 4.4 million rows in our deals database and 7000 rows in our categories database and it takes 72 seconds to execute, so if ...