[英]Insert multiple rows from select statement with variable mysql
Here's the sql statement I tried for adding data from one table to another. 这是我尝试将数据从一个表添加到另一个表的sql语句。
INSERT INTO wp_postmeta(`post_id`,`meta_key`,`meta_value`) VALUES((SELECT ID FROM wp_posts tb WHERE tb.post_type = 'support'),'category_order','0')
Basicaly I want to add rows to the wp_postmeta table. 基本上我想向wp_postmeta表添加行。 I want to add two static values, meta_key and meta_value.
我想添加两个静态值meta_key和meta_value。 But I also want to add post_id which should be derived from the ID of each row in wp_posts.
但我也想添加post_id,它应该从wp_posts中每一行的ID派生。 This doesn't seem to work when there are multiple rows returned from the SELECT statement.
当SELECT语句返回多个行时,这似乎不起作用。
Thanks for the help. 谢谢您的帮助。
试试这个
INSERT INTO wp_postmeta(post_id,meta_key,meta_value) SELECT ID, 'category_order','0' FROM wp_posts tb WHERE tb.post_type = 'support'
INSERT INTO wp_postmeta(`post_id`,`meta_key`,`meta_value`) SELECT ID, 'category_order','0' FROM wp_posts tb WHERE tb.post_type = 'support'
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