如需詳細資訊,請參閱 CHANGE_TRACKING_MIN_VALID_VERSION (Transact-SQL) 和ALTER DATABASE SET 選項 (Transact-SQL)。 VERSION table_name, { primary_key_values } 傳回指定數據列的最新變更追蹤資訊。 主鍵值必須識別數據列。 primary_key_values識別主鍵
应用于 frequency_type 所设频率的值。frequency_interval 的数据类型为int,默认值为 NULL。 [@frequency_relative_interval =]frequency_relative_interval 分发任务的日期。 如果 frequency_type 设置为 32(每月相对),则将使用该参数。frequency_relative_interval 的数据类型为int,可以是下列值之一。
create table tt(vid int not null primary key identity(1,1), v varchar(100) not null, vv int not null) go --3.2.捕获所有行的变更,且只返回净变更 --会创建2个新的SQL代理作业, --一个是cdc.t_capture,这个作业使用复制日志读取器技术捕获发生的变化,且被置为自动启动 --一个是cdc.t_cleanup...
SQL Copy DECLARE @PhotoColumnId int = COLUMNPROPERTY( OBJECT_ID('SalesLT.Product'),'ThumbNailPhoto', 'ColumnId'); SELECT CT.ProductID, P.Name, P.ListPrice, -- Always obtain values. CASE WHEN CHANGE_TRACKING_IS_COLUMN_IN_MASK( @PhotoColumnId, CT.SYS_CHANGE_COLUMNS) = 1 THEN ThumbNail...
. The change table always contains the values for all captured columns in the source table, not only for columns that changed their value during the update. Therefore, data from only the change table is necessary to propagate the changes to a data warehouse. In addition to the data from ...
Namespace: Microsoft.SqlServer.TransactSql.ScriptDom Assembly: Microsoft.SqlServer.TransactSql.ScriptDom.dll Package: Microsoft.SqlServer.TransactSql.ScriptDom v161.8901.0 The possible change tracking options.C# Копирај public enum ChangeTrackingOption...
SQL Server If the date is less than the sys date, change another column value to nullFor more...
SQL DECLARE@PhotoColumnIdint= COLUMNPROPERTY( OBJECT_ID('SalesLT.Product'),'ThumbNailPhoto','ColumnId');SELECTCT.ProductID, P.Name, P.ListPrice,-- Always obtain values.CASEWHENCHANGE_TRACKING_IS_COLUMN_IN_MASK( @PhotoColumnId, CT.SYS_CHANGE_COLUMNS) =1THENThumbNailPhotoELSENULLENDASCT_ThumbNail...
(SqlConnection cnn =newSqlConnection()) {for(inti =0; i <=1; i++) {// Run this loop at most two times. If the first attempt fails,// the code checks the Number property of the SqlException object.// If that contains the special values 18487 or 18488, the c...
CHANGE REPLICATION SOURCE TOcauses an implicit commit of an ongoing transaction. SeeSection 15.3.3, “Statements That Cause an Implicit Commit”. CHANGE REPLICATION SOURCE TOcauses the previous values forSOURCE_HOST,SOURCE_PORT,SOURCE_LOG_FILE, andSOURCE_LOG_POSto be written to the error log, alo...