There are 2 tables: report (which has a primary key of reportId and a bit field called migrated) and report_detail (which has a foreign key of reportId). I want to delete all the rows from report_deta
DELETE FROM Books INNER JOIN (Classes, Class_Books) O开发者_如何学GoN (Books.ISBN = Class_Books.ISBN AND Class_Books.Class_ID = Classes.Class_ID AND Classes.Term_ID = 63) WHERE Year = \'\"\"\'
What is the best way to delete all rows in a table in Hibernate? If I iterate ov开发者_如何学Cer a collection and call session.delete() it\'s not performing to my knowledge.
I have an SQL Server 2005 database, and I tried putting indexes on the appropriate fields in order to speed up the DELETE of records from a table with millions of rows (big_table has only 3 columns),
In PostgreSQL I have a query like the following which will delete 250k rows from a 1m row table: DELETE FROM table WHERE key = \'needle\';
I have a table cats with 42,795,120 rows. Apparently this is a lot of rows.So when I do: /* owner_cats is a many-to-many join table */
I can use select * from sent_txts s LEFT JOIN received_txts r ON s.msg_link_id = r.id W开发者_如何学编程HERE r.action_id = 6;
I am trying to delete from a few tables at once. I\'ve done a bit of research, and came up with this DELETE FROM `pets` p,
I have a query. DELETE FROM A WHERE i NOT IN ( SELECT i FROM B WHERE j = 1 UNION select i from C UNION select i from D
I have a table like entryid,roomid 11 255 31 412 51 644 71 83 91 Now I would like to delete ALL entries wh开发者_运维问答ere roomid = 1 and keep
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