sp_changearticlecolumndatatype 用于替代受支持的发布服务器类型(Oracle 和 SQL Server)之间的默认数据类型映射。 若要查看这些默认数据类型映射,请执行 sp_getdefaultdatatypemapping。 sp_changearticlecolumndatatype 仅Oracle 发布服务器支持。 针对 SQL Server 发
简单示例 altertablemyTableaddmyNewColumnintnull; while1=1beginupdatetop (100000) myTablesetmyNewColumn=myOldColumnwheremyNewColumnisnull; if @@ROWCOUNT=0break;endaltertablemyTabledropcolumnmyOldColumn;EXECsp_RENAME'[myTable].[myNewColumn]','myOldColumn','COLUMN'...
使用SQL Server 管理物件 (SMO) 中的 Column.Collation 屬性。 無法變更目前由下列任何一個項目參考的資料行定序: 計算資料行 索引 分布統計資料,不論是自動產生或由 CREATE STATISTICS 陳述式生成 檢查條件約束 外鍵約束 當您使用 tempdb時, COLLATE 子句會包含 database_default 選項,將暫存資料表中...
Returns a Transact-SQL script used to change the column data type mapping for a non-SQL Server Publisher. C# publicstringScriptChangeColumnDestinationDataType(stringcolumnName,stringdataType,longprecision,intscale,longlength, Microsoft.SqlServer.Replication.ScriptOptions scriptO...
column_name 指定主鍵數據行或資料行的名稱。 您可以依任何順序指定多個資料行名稱。 value 這是主鍵的值。 如果有多個主鍵數據行,則必須以與數據行出現在 column_name 清單中的順序相同來指定值。 [ FORCESEEK ] 適用於:SQL Server(從 SQL Server 2016 (13.x) SP2 CU16、SQL Server 2017 (14.x) CU24 和...
Assume that you have a table that has a clustered columnstore index in Microsoft SQL Server 2014. You run a DDL query against the table to change the data type of an existing column. For example, you update the data type for Column_1 of Table_1 from VARCHAR (499) to ...
SQL Server 2016 (13.x) and later Azure SQL Database Azure SQL Managed Instance Analytics Platform System (PDW) You can change the order of columns inTable Designerin SQL Server Management Studio (SSMS). By default, a safety mechanism of SSMS blocks changing the column order. Though it isn...
market prices are tracked per stock and the price column is updated several times a day, an all changes query would return every change of every stock price in the queried LSN interval. A net change query would result in only one change row per stock with the final price in the data. ...
You use the Always Encrypted feature of Microsoft SQL Server to encrypt a column in a table. You enable the change data capture (CDC) feature for this table. The encrypted column is not included in thecaptured column list. In this scenario, when you try to use thesp_cdc_di...
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