SQL 跟踪结果的大小依赖于跟踪中包括的事件类和数据库引擎的用法。 如果跟踪经常出现的事件类,则可以通过设置最大文件大小或最大行数来最小化跟踪收集的数据量。 通过指定最大文件大小或行数,可以确保跟踪文件或表不会增长到超出指定范围。 备注 如果将跟踪数据保存到已经存在的文件,则可以向该文件追加数据或覆盖该...
)DECLARE@tablenameVARCHAR(255);DECLARE Info_cursorCURSORFORSELECT'['+[name]+']'FROM sys.tablesWHERE TYPE='U';OPENInfo_cursorFETCHNEXTFROM Info_cursorINTO@tablenameWHILE@@FETCH_STATUS=0BEGININSERTINTO@tablespaceinfoEXEC sp_spaceused@tablenameFETCHNEXTFROM Info_cursorINTO@tablenameENDCLOSEInfo_cursorD...
(二) 运用系统存储过程sp_MSforeachtable把结果保存到临时表,可以过滤表;; 下面Script2脚本是通过使用系统存储过程sp_MSforeachtable,返回的结果如Figure1所示: --Script2:--查看某数据库所有表的信息DECLARE@tablespaceinfoTABLE([name]SYSNAME,[rows]BIGINT,[reserved]VARCHAR(100),[data]VARCHAR(100),[index_...
Trace Flag 1800 is not required to be enabled on disk with sector sizes larger than 4 KB. For more information, see KB3009974, KB2510009, and KB926930.Applies to: SQL Server 2012 (11.x) Service Pack 1 CU 13, SQL Server 2012 (11.x) Service Pack 2 CU 3, SQL Server 2014 (12.x...
For more information about on-disk storage sizes, see nchar and nvarchar and char and varchar. 2 The code point range for supplementary characters. Tip It's a common perception, in char and varchar or in nchar and nvarchar, that n defines the number of characters. This is because, in ...
-- Syntax for SQL Server and Azure SQL Database [ WITH <common_table_expression> [...n] ] UPDATE [ TOP ( expression ) [ PERCENT ] ] { { table_alias | <object> | rowset_function_limited [ WITH ( <Table_Hint_Limited> [ ...n ] ) ] } | @table_variable } SET { column_name...
[ , ...n ] ) |USEPLANN'<xml_plan>'|TABLEHINT(<exposed_object_name>[ ,<table_hint>[ [ , ] ...n ] ] ) |FORTIMESTAMPASOF'<point_in_time>'}<table_hint>::={NOEXPAND[ ,INDEX(<index_value>[ , ...n ] ) |IN...
_SPI_current->tuptable = NULL; _SPI_current->execSubid = InvalidSubTransactionId; slist_init(&_SPI_current->tuptables); _SPI_current->procCxt = NULL; /* in case we fail to create 'em */ _SPI_current->execCxt = NULL; _SPI_current->connectSubid = GetCurrentSubTransactionId(); ...
The CREATE TABLE statement defines a table. The definition must include its name and the names and attributes of its columns. The definition can include other attributes of the table, such as its primary key and its table space. Invocation for CREATE TABLE This statement can be embedded in ...
T-SQL GETDATE() ? ADD and SUBTRACT depending on the condition is CASE STATEMENT ADD COLUMN to variable table? Add prefix in data column Add Time in SQL HH:MM:SS to another HH:MM:SS Adding a column to a large (100 million rows) table with default constraint adding a extra column in...