.net - lock and unlock sql server tables from .net code without using stored procedures

Question

I need to block a table from being accessed by any other process unless my current operation(usually a INSERT or an UPDATE) is completed, Is there a way to lock and unlock sql server tables from .net code without using stored procedures, i need these to avoid business rules based duplicate records from being entered into the table.

Answer 1

更好的是，不要锁定表（尤其是如果更新/插入数据需要很长时间），而是仅在所有数据都更新/插入后提交更改。

Answer 2

你用一个提示

插入带有（tablock）（colx）值（'newValuex'）的表中；

如果 valuex 是主键或具有唯一约束，那么它将被强制执行。

但是您不需要 tabloc 来强制执行该约束。

如果您有多个语句，那么您可以将它们包装在一个事务中。