One, if statementIn PL/SQL, keywords such as if, then, else, elsif, endif are used to perform conditional logicSyntax format:if conditions 1 Then Statement 1elsif conditions 2 Then Statement 2Else Statement 3End If; Example 1: Practice If
You can use the Loop statement to loop through the data in PL/SQL, which allows you to loop through the specified sequence of statements. The common Loop Loop statement consists of 3 types: basic loop, while ... Loop and for ... LOOP.The basic
Oracle Loop statementsWhen you write a loop control structure, you can use three types of loop statements, such as the basic loop, while loop, and for loop, which describe the methods for using these three loop statements.1. Basic cycleLOOPStatement1
In many databases, there is a simple syntax such as loop, which is no exception in oracle. Let's take a look at the nested loop in El and explain it out of the internal loop body with instance 2.
The Code is as follows:
Copy code
1. Database design:For user-specific needs, then we create a most practical and high performance database!Steps for database design:01. Demand Analysis02. Conceptual Structure Design03. Logical Structure Design04. Physical Organization Design05.
You can use the Loop statement to loop through the data in PL/SQL, which allows you to loop through the specified sequence of statements. The common Loop Loop statement consists of 3 types: basic loop, while ... Loop and for ... LOOP.The basic
Over the past decade, Oracle has become one of the most professional databases in the world. For IT professionals, it is important to ensure that Oracle's powerful features are used to improve the productivity of their companies. One of the most
Application of Oracle cursor-for, loop, and if
I. Requirements
When Will Oracle cursors and the for, loop, and if statements be used?
Let's look at this requirement first:
There is a student teaching table T_TEACHING. Each student has several
First, the demandWhen will Oracle cursors be used, and for, loops, if?First look at such a requirement:There is a student lecture form t_teaching, each student has several courses:
Primary Key ID (self-increment)
Course Number
I. Demand
when will an Oracle cursor be used, and the For, loop, if?
Let's look at one such requirement:
There is a Student class table t_teaching, each student has several courses:
Primary Key ID (self-increasing)
Course Number
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