In SQL Server 2014 (12.x), FOREIGN KEY constraints are not supported with memory-optimized tables. Feature clustered index Specify a nonclustered index. In the case of a primary key index be sure to specify PRIMARY KEY NONCLUSTERED. Feature DDL inside transactions Memory-optimized tables and ...
Do not use explicit transactions for DML and DDL especially for reorganize index because the locking behavior of this statemnets becomes more restrictive. More details here. In sqlcmd move the -Uand -P parameters after the -Q parameter so that the password is at the end of the ...
A SQL Server DBA myth a day: (5/30) AWE must be enabled on 64-bit servers It’s no wonder this is confusing… A SQL Server DBA myth a day: (4/30) DDL triggers are INSTEAD OF triggers If only… A SQL Server DBA myth a day: (3/30) instant file initialization can be controll...
All Transact-SQL Control-of-flow statements are supported. SELECT query in WHILE (...) condition is not supported. DDL statements (CREATE, ALTER, DROP) Yes. All Transact-SQL DDL statement applicable to the supported object types Yes, all Transact-SQL DDL statement applicable to the supported ...
can we write DDL command in Stored Procedure? Can wildcards be used on datetime column? can you add colour to a fields output in T-SQL? Can you change the value of yes or no instead of true or false use data type (BIT) ? Can you have a TRY CATCH in dynamic SQL? Can you Select...
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; Tempor...
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SQL> 在这部分内存中我们最关注的通常是sort_area_size,这是当查询需要排序的时候,数据库会话将使用这部分内存进行排序,当内存大小不足的时候,使用临时表空间进行磁盘排序。由于磁盘排序效率和内存排序效率相差好几个数量级,所以这个参数的设置很重要。 当出现大量排序时的磁盘I/O操作时,可以考虑增加sort_area_size...
为了改进DDL触发器的性能,可以在数据库启动时,在GoldenGate安装目录下使用sysdba执行ddl_pin脚本SQL>@ddl_pin<DDL_user>该脚本会将该DDL触发器使用的PL/SQL包固定到内存中。它依赖于dbms_shared_pool系统包,使用ddl_pin前确认该包已经安装。 数据库方面的准备 ...
• 过程编译器 PL/SQL Compiler 2 | 1. Inceptor介绍 国内现有的数据仓库应用大都基于SQL 2003,且大量使用 过程来构建复杂应用。因此为满足需求, 除了SQL编译器以外,Transwarp Inceptor还包含 过程编译器用于对 过程的编译和执行。 Inceptor支持SQL2003标准, 过程,兼容Oracle、DB2、Teradata方言,包括完整的数据类型、...