我需要进行 MySQL 查询以TBL1
从未列出的记录中选择记录TBL2
,但不能使用我的查询。
SELECT deleted_guids.guid_type
, HEX(data_table.guid_id) as guid_id
, HEX(data_table.guid_type) as guid_type
FROM data_table
LEFT JOIN deleted_guids
ON data_table.guid_id = deleted_guids.guid_id
AND data_table.guid_type = deleted_guids.guid_type
WHERE deleted_guids.guid_type = NULL;