"cursor select must not have into"的含义和上下文 "cursor select must not have into"这一错误信息通常出现在使用数据库游标(cursor)进行SQL查询时。在SQL中,游标是一种数据库对象,用于逐行处理查询结果集中的数据。错误信息的含义是,在使用游标进行SELECT查询时,查询语句中不应该包含INTO子句。 游标通常用于以下...
Knowledge Base»Training & Tutorials»Advanced MariaDB Articles»Development Articles»MariaDB Internals Documentation»Using MariaDB with Your Programs (API)»Error Codes»MariaDB Error Codes 1300 to 1399»Error 1323: Cursor SELECT must not have INTO ...
DECLARE abc CURSOR STATIC FOR SELECT LastName FROM Person.Person; OPEN abc; -- Declare a cursor variable to hold the cursor output variable -- from sp_describe_cursor. DECLARE @Report CURSOR; -- Execute sp_describe_cursor into the cursor variable. EXEC master.dbo.sp_describe_cursor @cursor...
A. TO CURSOR B. INTO CURSOR C. INTO DBF D. TO DBF 相关知识点: 试题来源: 解析 B 正确答案:B 解析:SELECT的查询结果可以存入临时表、永久表和数组等,使用短语INTO CURSOR可以将查询结果存放在临时表文件中。 知识模块:关系数据库标准语言SQL反馈...
[ROWID] uniqueidentifier NOT NULL ) AS BEGIN IF (@Choice = 1) BEGIN INSERT INTO @TempEmp SELECT * FROM EMP where COMM is NOT NULL; END IF (@Choice = 2) BEGIN INSERT INTO @TempEmp SELECT * FROM EMP where sal > 2500; END IF (@Choice = 3) BEGIN INSERT INTO @TempEmp SELECT * ...
INSERT INTO #TMP(ii) VALUES(1) INSERT INTO #TMP(ii) VALUES(2) INSERT INTO #TMP(ii) VALUES(3) GO --Create a cursor. DECLARE cur CURSOR FOR SELECT * FROM #TMP --Display the status of the cursor before and after opening --closing the cursor. ...
在SQL SELECT语句中,为了将查询结果存储到临时表,应该使用短语___。 A) TO CURSOR B) INTO CURSORC) INTO DBF D) TO DBF 答案 B[解析] INTO CURSOR将查询结果存储到临时表,INTO DBF将查询结果存储到永久表中。相关推荐 1在SQL SELECT语句中,为了将查询结果存储到临时表,应该使用短语___。 A) TO CURSO...
cursor cur_users is select * from ma_users ; --声明了一个游标,可以打开游标OPEN cur_users ; --从游标中提取数据fetch cur_users into user_rec; --最后关闭游标close cur_users; --术语--静态SQL:当一个SQL语句所在的代码块被编译时,这个语句就完全指定的或者是固定的。--动态SQL:如果一个SQL语句...
[ROWID] uniqueidentifier NOT NULL ) AS BEGIN IF (@Choice = 1) BEGIN INSERT INTO @TempEmp SELECT * FROM EMP where COMM is NOT NULL; END IF (@Choice = 2) BEGIN INSERT INTO @TempEmp SELECT * FROM EMP where sal > 2500; END IF (@Choice = 3) BEGIN INSERT INTO @TempEmp SELECT * ...
If zero is returned, then there are no key/value pairs that follow the cursor position and a key/data pair is not returned. In a replicated environment, an explicit transaction must have been specified when opening the cursor, unless read-uncommitted isolation is specified via the CursorConfig...