Syntax for SQL Server, Azure SQL Database, Fabric SQL databasesyntaxsql კოპირება TRUNCATE TABLE { database_name.schema_name.table_name | schema_name.table_name | table_name } [ WITH ( P
B. Truncate table partitions Applies to: SQL Server 2016 (13.x) and later versions. The following example truncates specified partitions of a partitioned table. TheWITH (PARTITIONS (2, 4, 6 TO 8))syntax causes partition numbers 2, 4, 6, 7, and 8 to be truncated. ...
SQL DROP TABLE Example The following SQL statement drops the existing table "Shippers": ExampleGet your own SQL Server DROPTABLEShippers; SQL TRUNCATE TABLE TheTRUNCATE TABLEstatement is used to delete the data inside a table, but not the table itself. ...
Microsoft SQL Server has the ability to drop or truncate tables that have more than 128 extents without holding simultaneous locks on all the extents required for the drop.PermissionsThe minimum permission required is ALTER on table_name. TRUNCATE TABLE permissions default to the table owner, ...
Applies to: SQL Server ( SQL Server 2016 (13.x) throughcurrent version). The following example creates a table namedT1. Then the second statement drops the table. The third statement performs no action because the table is already dropped, however it doesn't cause an error. ...
若要添加新数据行,请使用 INSERT。若要删除数据行,请使用 DELETE 或 TRUNCATE TABLE。若要更改现有行中的值,请使用 UPDATE。 如果过程缓存中存在引用表的执行计划,ALTER TABLE 会将这些执行计划标记为下次执行时重新编译。 锁和ALTER TABLE ALTER TABLE 语句指定的更改将立即实现。如果这些更改需要修改表中的行,ALTE...
To delete all the rows in a table, useTRUNCATE TABLE.TRUNCATE TABLEis faster than DELETE and uses fewer system and transaction log resources.TRUNCATE TABLEhas restrictions, for example, the table cannot participate in replication. For more information, seeTRUNCATE TABLE (Transact-SQL) ...
DROP TABLE 表名 CASCADE CONSTRAINTS; 4.TRUNCATE (清空表里的所有记录, 保留表的结构) TRUNCATE 表名; 三.查询语句 (SELECT) 部分 SELECT字段名1, 字段名2, …… FROM 表名1, [表名2, ……] WHERE 条件; 字段名可以带入函数 例如: COUNT(*), MIN(字段名), MAX(字段名), AVG(字段名), DISTINCT...
The following SQL deletes the table "Shippers":ExampleGet your own SQL Server DROP TABLE Shippers; Note: Be careful before deleting a table. Deleting a table results in loss of all information stored in the table!TRUNCATE TABLEThe TRUNCATE TABLE command deletes the data inside a table, but ...
You can do to a temporary table the same things you do with regular tables. You can SELECT, INSERT, UPDATE, DELETE, and TRUNCATE them. And you can also use INDEX and add constraints. And finally, you can use DROP to erase them. ...