DROP TABLE --从数据库中删除表 ALTER TABLE --修改数据库表结构 CREATE VIEW --创建一个视图 DROP VIEW --从数据库中删除视图 CREATE INDEX --为数据库表创建一个索引 DROP INDEX --从数据库中删除索引 CREATE PROCEDURE --创建一个存储过程 DROP PROCEDURE --从数据库中删除存储过程 CREATE TRIGGER --创建...
A question about regular expressions in T-SQL A stored procedure returning a boolean value indicating wheter a specified value exists in a table. A transport-level error has occurred when receiving results from the server. (provider: TCP Provider, error: 0 - The semaphore timeout period has ex...
Transact-SQL syntax conventionsSyntaxsyntaxsql Másolás -- Syntax for SQL Server, Azure SQL Database, Warehouse in Microsoft Fabric DROP TABLE [ IF EXISTS ] { database_name.schema_name.table_name | schema_name.table_name | table_name } [ ,...n ] [ ; ] ...
針對記憶體最佳化資料表的 Transact-SQL INSERT 和 SELECT 陳述式與一般資料表無異。適用於記憶體最佳化資料表的 ALTER TABLEALTER TABLE...ADD/DROP 可以從記憶體最佳化資料表或索引新增或移除資料行。CREATE INDEX 和 DROP INDEX 無法針對記憶體最佳化資料表執行,請改用 ALTER TABLE ...ADD/DROP ...
针对内存优化表的 Transact-SQL INSERT 和 SELECT 语句与针对常规表的这些语句相同。 针对内存优化表的 ALTER TABLE ALTER TABLE...ADD/DROP 可以在内存优化表中添加或删除列或索引。 不能对内存优化表运行 CREATE INDEX 和 DROP INDEX,但可使用 ALTER TABLE...ADD/DROP INDEX。
Presents tips for using the temporary tables of the T-SQL developer feature of Microsoft SQL Server. Minimization of temporary table use; Creation of temporary tables in procedure; Use of indexes for large temporary tables; Grouping of DDL in batches; Explicitly dropping of temporary tables; Tempo...
这条路走不通,那我们换条路吧,比如Type Table: View Code 如果把Insert语句拿出来,当然是可以执行的,不过有些业务就是要动态处理,摊手中…… Solution 这时候该我们的临时表登场了。先看示例: View Code 从运行结果判定可以得出结论:临时表不仅可以在动态SQL中访问,还可以进行写操作。当然另外还有一种用永久表做...
SQL Server 2014 (12.x): schema changes are not supported. To change the definition of a memory-optimized table or natively compiled stored procedure, first drop the object and then recreate it with the desired definition. OperationTRUNCATE TABLEThe TRUNCATE operation is not supported for memory-...
Transact-SQL INSERT and SELECT statements against a memory-optimized table are the same as for a regular table. ALTER TABLE for Memory-Optimized tables ALTER TABLE...ADD/DROP can add or remove a column from a memory-optimized table, or an index. ...
Description:When trying to truncate a temporary table that's using the innodb table engine it doesn't work: all records are still intact. Heap and myisam engines are fine.How to repeat:Following code repeats the problem: drop table if exists test; create temporary table test (a int) engine...