WebOct 10, 2024 · Now, to run the commands, Click your bookstack table in the left column to select it. At the top click on the "SQL" tab. This should show a big text box with "Run SQL query/queries on database bookstack" above it. WebAug 16, 2024 · Cannot drop index 'index_investors_on_user_id': needed in a foreign key constraint. This seems to be necessary for foreign key constraint. I got it, and I executed the code below. ALTER TABLE investors DROP FOREIGN KEY index_investors_on_user_id; However, Can't DROP 'index_investors_on_user_id'; check that column/key exists. It …
Upgrade From 2.5.x to 3.x SQL error: 1091 Can
WebOct 12, 2006 · Description: Tables without a primary key but with a unique index on a NOT NULL column report it is a primary key. When you run a MySQL console client and type in such a case for example: SHOW columns FROM test; You will discover "Key: PRI" Any attempt of ALTER TABLE DROP PRIMARY KEY; results in: ERROR 1091 (42000): … WebAug 30, 2015 · 1.MYSQL在建外键后,会自动建一个同名的索引. 2.而删除外键的时候,这个同名索引如果没被删,则MYSQL认为外键仍然存在---MYSQL会在show keys命令里继续显示外键,当你drop table时,MYSQL也会继续提示你Can't DROP 'test3_fk'; check that column/key exists". 3.自然,当你再次想删除在show keys ... mileage from mitchell sd to rapid city sd
Bug #22520 tables without a primary key but with a unique index …
WebApr 7, 2005 · The primary key of the table, rlo_num, is a foreign key in a couple of other junction tables, so presumably that's causing the problem, but I'm not trying to DROP anything, honest guv. Is it the case that once you've employed a primary key as a foreign key elsewhere that the primary key's table is set in stone and can't be changed in any way? Web1. Looking at the website from your previous question, it looks like you have a Javascript string literal containing JSON, so you need to parse the Javascript string literal for the … WebAug 4, 2016 · 1,报错信息 Can’t DROP ‘NAME’; check that column/key exists 2,原因 想删除索引的表并没有这个索引存在 3,解决 执行语句的背景:由于我的name字段,里面存在重复数据,所以需要删除曾经设立的唯一索引,改为普通索引 执行语句: ALTER TABLE aaa DROP INDEX NAME, ADD INDEX NAME(NAME) USING BTREE; 方案一:先建立 … new york 204-ll filing fee