将"YourTableName"替换为要删除的数据表名称。 完成以上步骤后,你就成功地删除了数据表LCK_M_SCH_M。 下面是对整个流程的甘特图表示: 2022-01-012022-01-012022-01-022022-01-022022-01-032022-01-032022-01-042022-01-042022-01-05确认数据库连接确认数据表是否存在确保没有其他事务正在使用该表删除数据表确认...
在本机编译的存储过程之外使用内存优化的表变量时,在 destructing table 变量期间,将在相应的内存优化表类型上获取LCK_M_SCH_M (架构修改锁)。 在这种情况下,将阻止本机编译的存储过程外部的内存优化表变量的并发声明。 解决方案 在SQL Se...
# 如何用SQLServer删除数据表LCK_M_SCH_M作为一名经验丰富的开发者,我将教会你如何使用SQLServer删除数据表LCK_M_SCH_M。下面是整个流程的步骤表格: | 步骤 | 操作 | | --- | --- | | 步骤一 | 确认数据库连接 | | 步骤二 | 确认要删除的数据表是否存在 | | 步骤三 | 确保没有其他事务正在使用该...
LCK_M_SCH_M Description This wait occurs when a request is waiting to acquire a Schema Modify lock. This mechanism protects a schema from modification by other requests. This lock typically occurs during long schema changes for example: adding additional non-NULL columns, change column data types...
When you use memory-optimized table variables outside the natively compiled stored procedures, a LCK_M_SCH_M (schema modify lock) is taken on the corresponding memory-optimized table type during destructing the tabl...
This page explains the LCK_M_SCH_M wait type and gives examples of where it occurs in SQL Server.
Waiting for the Schema Modification lock during an online index operation (same stack as for LCK_M_SCH_M_LOW_PRIORITY except for a different location in the MDL::LockObjectLocal function) Waiting for the Schema Modification lock during a partition switch operation (same stack as for LCK_M_SCH...
RE: blocking LCK_M_SCH_S, LCK_M_SCH_M Orlando Colamatteo SSC Guru Points: 182276 More actions January 9, 2013 at 1:55 pm #1575434 GilaMonster (1/9/2013) opc.three (1/9/2013) The nice thing is that no queries need to change, not even the ones with the NOLOCK hint applied, ...
RE: blocking LCK_M_SCH_S, LCK_M_SCH_M Gail Shaw SSC Guru Points: 1004504 More actions January 8, 2013 at 9:51 am #1574915 You can't. Sch-M is a schema modification lock. Blocks everything and is blocked by absolutely anything, including the Sch-S locks that all queries have to ...
LCK M SCH S lock waiting time ldf size bigger than mdf Left Join - only first 'match' ... Left join Eliminating NULL values left join on linked server LEFT OUTER JOIN behaving like INNER JOIN LEFT OUTER JOIN without a JOIN condition length of nvarchar column in system tables LIKE '% [...