以下是包含 GOTO 语句的 SQL 过程的示例: CREATE PROCEDURE adjust_salary ( IN p_empno CHAR(6), IN p_rating INTEGER, OUT p_adjusted_salary DECIMAL (8,2) ) LANGUAGE SQL BEGIN DECLARE new_salary DECIMAL (9,2); DECLARE service DATE; -- start date SELECT salary, hiredate INTO v_new_salary...
This SQL Server tutorial explains how to use the GOTO statement in SQL Server (Transact-SQL) with syntax and examples. The GOTO statement causes the code to branch to the label after the GOTO statement.
The GOTO statement is an unconditional jump statement, which can jump the execution flow of the program to a position specified by a label. Tags must be unique within the scope of their execution. In version 23.2 of LightDB Database, plorasql supports GOTO statement. Scene GOTO statements are...
BEGIN FOR i IN1..50LOOP IF done THEN GOTO end_loop; END IF; <<end_loop>> -- not allowed unless an executable statement follows NULL; -- add NULL statement to avoid error END LOOP; -- raises an error without the previous NULL END; 3、使用goto分出一个环绕块: 1 2 3 4 5 6 7 ...
CREATE PROCEDURE adjust_salary (IN v_empno CHAR(6), IN rating INTEGER, OUT return_parm DECIMAL(8,2)) LANGUAGE SQL MODIFIES SQL DATA BEGIN DECLARE new_salary DECIMAL(9,2); DECLARE service DECIMAL(8,2); SELECT salary, CURRENT_DATE - hiredate INTO new_salary, service FROM employee WHERE ...
Python 为什么没有goto语句 是的,Python中没有goto语句。让我们首先了解C语言中的goto是什么。然而,在C语言中也不鼓励使用goto。 C语言中的goto语句提供了一个从'goto'到同一函数中带有标签的语句的无条件跳转。以下是语法: goto label; .. . label: statement; 示
The Transact-SQL statement or statements that follow GOTO are skipped and processing continues at the label. GOTO statements and labels can be used anywhere within a procedure, batch, or statement block. GOTO statements can be nested.Transact-SQL syntax conventions...
初始化GoToStatement類別的新執行個體。 命名空間:Microsoft.Data.Schema.ScriptDom.Sql 組件:Microsoft.Data.Schema.ScriptDom.Sql (在 Microsoft.Data.Schema.ScriptDom.Sql.dll 中) 語法 C# publicGoToStatement() .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...
As the message suggests, this error message occurs when a label is used in a GOTO statement but the label is not defined anywhere within the script block or stored procedure. Here are a few examples of how this error is encountered: ...
PL/SQL允许我们在运行时决定循环的范围,如下例所示: SELECT COUNT(empno) INTO emp_count FROM emp; FOR i IN 1 .. emp_count LOOP ... END LOOP; emp_count在运行时是未知的;SELECT语句在运行时才返回结果值。 如果循环范围中的下界值超过上界值会怎样呢?如下例所示,循环内的语句序列就不会被执行,控制...