[英]MySQL: ALTER IGNORE TABLE with DROP INDEX
I have many databases and in each I have table names
. 我有很多数据库,每个数据库都有表
names
。 In some I have UNIQUE KEY named name1
and in others the same UNIQUE KEY is named name2
. 在某些情况下,我有名为
name1
UNIQUE KEY,在其他情况下,相同的UNIQUE KEY则名为name2
。 I want to standard this name so I prepared 3 queries to run on each database: 我想将此名称标准化,所以我准备了3个查询以在每个数据库上运行:
ALTER IGNORE TABLE `names`
DROP INDEX `name1`;
ALTER IGNORE TABLE `names`
DROP INDEX `name2`;
ALTER TABLE `names`
ADD UNIQUE `new_name` (`name`, `surname`);
But I got error: 但是我得到了错误:
SQL Error (1091): Can't DROP 'name1'; check that column/key exists
How can I make one set of queries to run on each database? 如何使一组查询在每个数据库上运行?
You can attempt to ignore errors if you're executing your SQL script file from command line: 如果您从命令行执行SQL脚本文件,则可以尝试忽略错误:
mysql -f -u username -p password -e 'source script.sql'
EDIT 编辑
Thanks to Ike, the correct way to do this is: 感谢Ike,正确的方法是:
mysql -f -u username -p password < script.sql
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