mysql in 子句 vs 一次提交多次删除
我有大约 100K 条记录，我必须运行以下查询：
delete from users where name in #{String}
其中字符串可以是这种形式的 100K 字符串：Joe,Kate 等。
为了提高性能，最好运行上述语句或在循环中删除一条记录session.commit();到底是什么？
已编辑
每个值只能有一条记录
I have about 100K records that I have to run for the following query:
delete from users where name in #{String}
where the string could be 100K strings of this form: Joe,Kate etc.
For performance is it better to run the above statement or delete one record in a loop with one session.commit(); in the end?
EDITED
There could be only one record for each value
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如果您可以创建要运行的批量查询，那么将其分成多个批次很可能是最快的：
等等。
如果表中已有名称，您可以这样做：
If you can create batches of queries to run then breaking it up into batches would most likely be the fastest:
etc..
If you have the names in a table already you can just do this:
最好不要使用这样的语句！
查询优化器将花一天的时间来解析这样的查询。我建议使用一些临时表来连接，或者要删除的记录有共同点的其他 WHERE 子句？
It would be better not to use such statements!
The query optimizer will have a field day parsing such a query. I suggest using some temporary table to join against, or some other WHERE-clause that the records to be deleted have in common?