Now the situation is that the duplicate row is in the local temporary table. All we need to now is to delete records from main table customers1 as per matching custid of the local temporary table. Delete from customers1 where custid in (select Custid from #Temp_customers1) Will the above...
使用以下SQL语句查找删除操作的事务日志记录: SELECT[TransactionID],[BeginTime],[TransactionName]FROMfn_dblog(NULL,NULL)WHERE[TransactionName]='DELETE'AND[TransactionID]IN(SELECTDISTINCT[TransactionID]FROMfn_dblog(NULL,NULL)WHERE[TransactionName]='LOP_DELETE_ROWS'); 1. 2. 3. 4. 5. 6. 7. 8....
mysql> ROLLBACK TO start_02; # 回到第二个保留点start_02 Query OK, 0 rows affected (0.00 sec) mysql> SELECT * FROM Transaction_table; # 可以看到数据已经回到设置第二个保存点时候的数据 +---+ | id | +---+ | 1 | | 2 | | 3 | | 4 | +---+ 4 rows in set (0.00 sec) mysq...
Applies to: SQL ServerDelete rows in the Results pane if you want to delete records in the database. If you want to delete all of the rows you can use a Delete query. For more information see Create Delete Queries (Visual Database Tools). If you only want to remove rows from the Re...
SQL 复制 DELETE Sales.ShoppingCartItem OUTPUT DELETED.* WHERE ShoppingCartID = 20621; --Verify the rows in the table matching the WHERE clause have been deleted. SELECT COUNT(*) AS [Rows in Table] FROM Sales.ShoppingCartItem WHERE ShoppingCartID = 20621; GO ...
SQL Copier DELETE Sales.ShoppingCartItem OUTPUT DELETED.* WHERE ShoppingCartID = 20621; --Verify the rows in the table matching the WHERE clause have been deleted. SELECT COUNT(*) AS [Rows in Table] FROM Sales.ShoppingCartItem WHERE ShoppingCartID = 20621; GO ...
在hard delete 的情况下, 通过 0 rows affected 来判断是否并发. 在soft delete 的情况下就不同了, 我们得实现一个 concurrency 的机制, 比如 row version. Step 6: Cascade Delete 上面说 hard delete 的时候, 有提到一些 SQL Server build-in 的好东西. ...
When we run this statement, it will delete all rows that have a product_name of Couch. In this example it will delete one row. This query will work in all variations of SQL: Oracle, SQL Server, MySQL, PostgreSQL, and more. You’ll get an output like this: 1 row(s) deleted. Here...
UPDATE pay_stream a SET a.return_amount = 0 WHERE a.pay_id IN (SELECT b.pay_id FROM pay_main b WHERE b.user_name = '1388888888'); id select_type table partitions type possible_keys key key_len ref rows filtered Extra --- --- --- --- --- --- --- --- --- --- --...
It is possible to delete all rows in a table without deleting the table. This means that the table structure, attributes, and indexes will be intact: The following SQL statement deletes all rows in the "Customers" table, without deleting the table. This means that the table structure, attri...