--This will allow youtohave 0toMANYvaluestobe executed, so you don't have to set up a variable for each. --The following is a complete sample of how you may go about doing that without cursors. SET NOCOUNT ON DECLARE @dict TABLE ( id INT IDENTITY(1,1), -- a unique identity colu...
DECLARE CURSOR如果使用 Transact-SQL 語法未指定READ_ONLY、OPTIMISTIC或SCROLL_LOCKS, 則預設值如下: SELECT如果語句不支援更新(許可權不足、存取不支援更新的遠端資料表等等),則資料指標為READ_ONLY。 STATIC和FAST_FORWARD資料指標預設為READ_ONLY。 DYNAMIC和KEYSET資料指標預設為OPTIMISTIC。
DECLARE@MyVariableINT;SET@MyVariable =1;EXECUTEsp_executesql N'SELECT @MyVariable';-- this produces an error 在Transact-SQL 变量中设置值 首次声明变量时,其值设置为NULL。 若要向变量赋值,请使用SET语句。 这是为变量赋值的首选方法。 变量还可以通过在语句的选择SELECT列表中被引用来分配值。
arrayVARCHAR(7999)NOTNULL ) go INSERTINTOArraysVALUES('') INSERTINTOArraysVALUES('10') INSERTINTOArraysVALUES('20,40,30') INSERTINTOArraysVALUES('-1,-3,-5') GO CREATEFUNCTIONfunction1(@arrASVARCHAR(7999)) RETURNS@tTABLE(posINTNOTNULL, valueINTNOTNULL) AS BEGIN DECLARE@endASINT,@startASINT...
The following code shows how to use an expression with a variable to return the requested number of earliest orders from the SalesOrderHeader in the AdventureWorks database: Copy USE AdventureWorks DECLARE @n AS BIGINT SET @n = 5 SELECT TOP (@n) * FROM SalesOrderHeader AS SOH ORDER BY ...
型別:Microsoft.Data.Schema.ScriptDom.Sql.DeclareVariableStatement 指定的片段型別。 .NET Framework 安全性 完全信任立即呼叫者。這個成員無法供部分信任的程式碼使用。如需詳細資訊,請參閱從部分受信任程式碼使用程式庫。 請參閱 參考 TSqlFragmentVisitor 類別 ...
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FETCH [NEXT | PRIOR | FIRST | LAST | ABSOLUTE <Value> | RELATIVE <Value>] FROM <Cursor Name> INTO <Variable List>; Examples The following example processes data in a cursor. DECLARE MyCursor CURSOR FOR SELECT * FROM Table1 AS T1 INNER JOIN Table2 AS T2 ON ...
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getBatch (@rows AS INT ,@offset AS INT) RETURNS @output TABLE ( marvel_id INT , avenger_name VARCHAR(30) , first_name VARCHAR(20) , last_name VARCHAR(20)) AS BEGIN DECLARE /* Declare a variable for a dynamic SQL statement. */ @stmt VARCHAR(400); /* Assign the SQL statement to...