下列SQL 語句會建立名為monitor_login的登入,並將VIEW SERVER STATE許可權授與monitor_login登入。 SQL USEmaster; GOCREATELOGIN monitor_loginWITHPASSWORD='<password>';GRANTVIEWSERVERSTATETOmonitor_login; GO 授予使用系統視圖監控裝置及終止連接的許可權 ...
Analytic Platform System (APS) SQL Server 平行處理資料倉儲 (PDW) 的 Transact-SQL (T-SQL) 陳述式。 資料定義語言 (DDL) 陳述式 ALTER DATABASE ALTER INDEX ALTER PROCEDURE ALTER SCHEMA ALTER TABLE CREATE COLUMNSTORE INDEX CREATE DATABASE CREATE DATABASE SCOPED CREDENTIAL CREATE EXTERNAL DATA SOURCE ...
If you really want to start other parallel scopes within current parallel process, the following pseudo code shows the trick. You can launch a worker spid to run the sp_exec script. --This is in current master process sp_exec_init
I have an index management proc which I want to run in parallel calls. When I fire them, they finish without executing and I don't get any error. They are not actually executing. Any thoughts? Viewing 15 posts - 16 through 30 (of 35 total) ...
SQL Server requires you to specify explicitly the list of values in the IN clause to rotate to result columns. You can't use a static query and have SQL Server figure out all distinct values in OrderYear. To achieve this, you have to use dynamic execution to construct the query string ...
一般而言主要在如下情况使用parallel HINT 1.表的数据量很大,超过一千万; 2.数据库主机是多个CPU; 3.系统的当前负载较低; 简单的测试如下,效果很明显的: SQL> select /*+parallel(t,4)*/count(*) from t; COUNT(*) --- 30245882 已用时间:
使用sqlt手工创建sql_profile(r4笔记第37天),在生产环境中有一些sql语句出现问题,大多是一些很紧急的问题,可能有些sql语句出现了执行计划的问题,通过hint能够做很大的改进,但是如果想让变更尽快生效,可以使用sql_profile来实现
Learn the basics of the In-Memory OLTP performance features of SQL Server and Azure SQL Database with quick explanations and core code samples for developers.
SQL Server Transact-SQL Index .NET Framework error occurred during execution of user-defined routine or aggregate "geography" 'IF EXISTS(SELECT COUNT(1))' VS 'IF EXISTS(SELECT 1) ' 'Incorrect syntax near' error while executing dynamic sql 'INSERT EXEC' within a function did ...
Parallel.ForEach( (frag as TSqlScript).Batches, batch => { myvisitor visit = new myvisitor(); batch.Accept(visit); This way, each T-SQL batch in the original script is visited on a separate thread. Regenerate the Script Once the visitor does its job to ‘normalize’ the various liter...