statement:LOOP语句中循环执行的语句序列。 END LOOP:LOOP循环结束标志,可以添加LOOP结构的标签。 1.基本的LOOP语句 实例:要求声明变量,每次循环都需要为变量增加数字1,并输出结果。当变量值大于3时,退出循环操作。 a、利用EXIT...WHEN结束循环操作。 SQL> set serveroutput on; SQL> --exit when SQL> declare ...
postgre sql循环遍历函数 sql循环语句loop 在PL/SQL中可以使用LOOP语句对数据进行循环处理,利用该语句可以循环执行指定的语句序列。常用的LOOP循环语句包含3种形式:基本的LOOP、WHILE...LOOP和FOR...LOOP。 LOOP语句的基本语法结构如下: [<>]LOOPstatement...ENDLOOP[label_name]【语法说明】<>:LOOP结构的标签,是...
在PL/SQL中可以使用LOOP语句对数据进行循环处理,利用该语句可以循环执行指定的语句序列。常用的LOOP循环语句包含3种形式:基本的LOOP、WHILE...LOOP和FOR...LOOP。 LOOP语句的基本语法结构如下: 1[<>]2LOOP3statement...4END LOOP [label_name]56【语法说明】7<>:LOOP结构的标签,是可选项。8LOOP:LOOP循环开始...
The basic loop is the simplest type of loop statement in PL/SQL. It repeats a block of code indefinitely until an exit condition is met. The loop continues until explicitly terminated using the EXIT statement. The basic syntax of the basic loop is as follows: LOOP -- Code block to be e...
PL/SQL FOR LOOP Summary: in this tutorial, you will learn how to use the PL/SQL FOR LOOP statement to execute a sequence of statements a specified number of times. Introduction to PL/SQL FOR LOOP statement PL/SQL FOR LOOP executes a sequence of statements a specified number of times. ...
PL/SQL - WHILE LOOP StatementPrevious Quiz Next A WHILE LOOP statement in PL/SQL programming language repeatedly executes a target statement as long as a given condition is true.SyntaxWHILE condition LOOP sequence_of_statements END LOOP;
Here we wrote a full-fledged PL-SQL code to find the table of 12. So in PL-SQL, every code starts with declare command. Then inside that, we declare var_res variable as a number to store the result. Then BEGIN statement start and inside that, we create a loop statement which will ...
In Oracle, the LOOP statement is used when you are not sure how many times you want the loop body to execute and you want the loop body to execute at least once.Syntax The syntax for the LOOP statement in Oracle/PLSQL is: LOOP {...statements...} END LOOP; Parameters or Arguments ...
Summary: in this tutorial, you will learn about the PL/pgSQL loop statement that executes a block of code repeatedly. Introduction to PL/pgSQL Loop statement The loop defines an unconditional loop that executes a block of code repeatedly until terminated by an exit or return statement. The fo...
Summary: in this tutorial, you will learn about PL/SQL WHILE loop statement to execute a sequence of statements as long as a specified condition is TRUE. Introduction to PL/SQL WHILE loop statement PL/SQL WHILE loop is a control structure that repeatedly executes a code block as long as a...