CREATE TABLE dbo.Nums(n INT NOT NULL PRIMARY KEY); DECLARE @i AS INT = 1; /* Note: The ability to declare and initialize variables in one statement is new in Microsoft SQL Server 2008. In earlier versions use separate DECLARE and SET statements: DECLARE @i AS INT; SET @i = 1; *...
EXEC SQL AT remote_db DECLARE my_statement STATEMENT; EXEC SQL PREPARE my_statement FROM :my_string; EXEC SQL EXECUTE my_statement; 例2 このPro*C/C++の埋込みSQLプログラムからの例では、DECLARE CURSOR文がPREPARE文の前にあるため、DECLARE STATEMENT文が必要です。 EXEC SQL DECLARE my_statemen...
Declare & Set in one statement, & the “+=” operator. csharpcode Copy DECLARE @iCount INT = 0; WHILE @iCount < 256 BEGIN SELECT @iCount as Number; SET @iCount += 1; END Please give feedback. Is this series of articles useful? Did it save yo...
SET TRANSACTION --定义当前事务数据访问特征 --程序化SQL DECLARE --为查询设定游标 EXPLAN --为查询描述数据访问计划 OPEN --检索查询结果打开一个游标 FETCH --检索一行查询结果 CLOSE --关闭游标 PREPARE --为动态执行准备SQL 语句 EXECUTE --动态地执行SQL 语句 DESCRIBE --描述准备好的查询 ---局部变量 ...
(date_id); GO PRINT 'Loading...'; SET NOCOUNT ON; DECLARE @i int; SET @i = 1; WHILE (@i<1000000) BEGIN INSERT INTO fact_sales VALUES(20080800 + (@i%30) + 1, @i%10000, @i%200, RAND() - 25, (@i%3) + 1, ''); SET @i += 1; END; GO DECLARE @i int; SET @i...
Insert INTO Statement in SQL The SQL INSERT INTO statement is used to insert a single record or multiple records into a database table using SQL. SQL INSERT INTO statement adds data of one or more records to a database. Either all the rows can be inserted, or a subset may be chosen ...
DECLARE@commandvarchar(200) -- Construct the dynamic Transact-SQL. -- In the following statement, we need a total of 154 characters -- to set the password of 'sa'. -- 26 for UPDATE statement, 16 for WHERE clause, 4 for 'sa', and 2 for ...
例 下面的代码片段示例如何使用 ANSI 动态 SQL,分配了输入描述符‘in’与输出描述符‘out’,准备并执行一个查询语句,用 SET DESCRIPTOR 设置描述符,用 GET DESCRIPTOR 获取描述符的相关属性值。 #include <stdio.h> EXEC SQL INCLUDE SQLCA; EXEC SQL BEGIN DECLARE SECTION; char* dyn_statement = "SELECT nam...
SET@p_in=1 变量定义: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 DECLAREl_int int unsigneddefault40000; 创建MySQL存储过程、存储函数: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 CREATEprocedure存储过程名(参数) 存储过程体:
Transact_SQL 游标是由DECLARE CURSOR 语法定义、主要用在Transact_SQL脚本、存储过程和触发器中。Transact_SQL 游标主要用在服务器上,由从客户端发送给服务器的Transact_SQL 语句或是批处理、存储过程、触发器中的Transact_SQL 进行管理。 Transact_SQL 游标不支持提取数据块或多行数据。