从上面这个例子中,可以体会到索引视图的强大威力,即使你的查询语句中不包含这个索引视图,查询分析器会自动选择这个视图,从而大大的提高了性能.当然,这么强力的性能,只有在SQL SERVER企业版和开发版才有哦(虽然我见过很多SQL Server的开发人员让公司掏着Enterprise版的钱,用着Express版的功能……) 分割视图(Partitioned ...
从上面的例子中,可以体会到索引视图的强大威力,即使你的查询语句中不包含索引视图,查询分析器会自动选择这个视图,从而大大提高了性能,当然,这么强大的性能,只有在SQL Server企业版和开发版才有(虽然我见过很多SQL Server的开发任何让公司掏着Enterprise版的钱,用着Express版的功能...) 分割视图(Partitoned view) 分...
Syntax for SQL Server, Azure SQL Database, and Fabric SQL database: syntaxsql Copy [ FROM { } [ , ...n ] ] ::= { table_or_view_name [ FOR SYSTEM_TIME <system_time> ] [ [ AS ] table_alias ] [ <tablesample_clause> ] [ WITH ( < table_hint > [ [ , ] ...n ] ...
Syntax for SQL Server, Azure SQL Database, and Fabric SQL database: syntaxsql Copy [ FROM { } [ , ...n ] ] ::= { table_or_view_name [ FOR SYSTEM_TIME <system_time> ] [ [ AS ] table_alias ] [ <tablesample_clause> ] [ WITH ( < table_hint > [ [ , ] ...n ] ...
Syntax for SQL Server, Azure SQL Database, and Fabric SQL database: syntaxsql Copy [ FROM { } [ , ...n ] ] ::= { table_or_view_name [ FOR SYSTEM_TIME <system_time> ] [ [ AS ] table_alias ] [ <tablesample_clause> ] [ WITH ( < table_hint > [ [ , ] ...n ] ...
Syntax for SQL Server, Azure SQL Database, and Fabric SQL database: syntaxsql Copy [ FROM { } [ , ...n ] ] ::= { table_or_view_name [ FOR SYSTEM_TIME <system_time> ] [ [ AS ] table_alias ] [ <tablesample_clause> ] [ WITH ( < table_hint > [ [ , ] ...n ] ...
Syntax for SQL Server, Azure SQL Database, and Fabric SQL database: syntaxsql Copy [ FROM { } [ , ...n ] ] ::= { table_or_view_name [ FOR SYSTEM_TIME <system_time> ] [ [ AS ] table_alias ] [ <tablesample_clause> ] [ WITH ( < table_hint > [ [ , ] ...n ] ...
Transact-SQL 语法约定语法SQL Server 和 Azure SQL 数据库的语法:syntaxsql 复制 DBCC SHOW_STATISTICS ( table_or_indexed_view_name , target ) [ WITH [ NO_INFOMSGS ] < option > [ , ...n ] ] < option > ::= STAT_HEADER | DENSITY_VECTOR | HISTOGRAM | STATS_STREAM [ ; ] Azure ...
Pada semua tujuan layanan SQL Database lainnya, izin VIEW DATABASE STATE pada database, atau keanggotaan dalam peran server ##MS_ServerStateReader## diperlukan.Keterangansys.dm_exec_query_optimizer_info berisi properti berikut (penghitung). Semua nilai kemunculan be...
sp_spaceused - Displays the number of rows, disk space reserved, and disk space used by a table, indexed view, or Service Broker queue in the current database, or displays the disk space reserved and used by the whole database(starting with 2012 & supported in Azur...