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This week's book is the Ultimate guide to Oracle's C PL (SQL) programming, published by the mechanical industry press, Sun Fingdong, Wang Yu, Guo Xiaohui. Content Introduction: The ultimate guide to Oracle 12c PL/SQL is the most

Constant 1. Define the syntax format of constantsConstant name constant type identifier [not null]: = value;Constants, including variable names that follow them, must start with a letter, cannot contain spaces, cannot exceed 30 characters, and

Constant 1. Define the syntax format for constants Constant name constant type identifier [not null]:= value; constants, including the following variable names must begin with a letter, cannot have spaces, cannot exceed 30 characters in length, and

Basic PL/SQL programming and plsql Programming1. Basic Structure of PL/SQL Blocks DECLARE /* * Definition section-defining constants, variables, complex data types, cursors, user-defined exceptions */ BEGIN /* * Execution part-PL/SQL statements and

[SQL] PL/SQL Syntax of Oracle and its extended data types summary PL/SQL syntax PL/SQL program consists of three parts: Declaration, execution, and exception handling. Template: [SQL] DECLARE/* variable Declaration */BEGIN/* Program subject

Document directory PL/SQL syntax % Type of Custom Data Type Record of composite data type % Rowtype of composite data type Summary of Oracle Extended Data Types PL/SQL syntax The PL/SQL program consists of three parts: Declaration, execution,

PL/SQL CollectionProcessing single row of data, you can use the scalar quantity;Processing single-row multi-column data, you can use PL/SQL records (%rowtype,record);Working with single-column multi-row data, you can use PL/SQL collections.The

Oracle's definition array typeNote: The source of this article:Oracle's definition Group typeOracle array type, there is no ready-made type, but can be defined freely, it is convenient.Oracle arrays can be divided into fixed-length arrays and

Overview of a Pro * C program: 1. What is a Pro * C program? There are three methods to access the database in the ORACLE database management and system; (1) use SQL * Plus, which has SQL commands to access the database through interactive

A pro*c Program Overview: 1. What is the PRO*C program In Oracle database management and system, there are three ways to access the database; (1) With Sql*plus, it has SQL commands to access the database with interactive applications; (2) using the