我在MySQL5.7数据库中使用jpa eclipselink时,create query contain出现错误
Internal Exception: com.mysql.jdbc.exceptions.jdbc4MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQLAccording to MySQL 5.5.45+, 5.6.26+ and 5.7
看起来这是一个简单的问题,但我无法在MsSql中得到我需要的东西,而我可以在MySQL和Oracle中轻松地做到这一点。In MySQL: UPDATE table_spec_data SET coverage=33,其中(specification_id,data_id) IN (247,1),(248,2),(249,3);
甲骨文中的: UPDATE table_spec_data SET coverage=33,其中(specification_id,data_id) IN (从双联合选择247,1从双联合选择24
mysql> select count(id) total from applicants;| total || 0 |1 rowin set (0.00 sec)
+-------++-------+1 row in set (0.00 sec)
mysql> select count(id) tota
我有一个查询,其中有重复的表达式。它能写得更紧凑吗? where `saved_search_interval` = 1 and `last_processing_started_datetime` < CURDATE() - INTERVAL 1 HOURselect id from `vacature_saved_searches`