安装plsql之前首先需要把下载oracle instant client 解压出来,如下图,比如将压缩包中的instantclient_12_2 文件夹解压到 D:\Program 文件夹 然后直接双击plsql如下图安装文件,默认安装完成即可。 安装完成后,双击如下图plsql启动图标 注册码: Product Code(产品代号):4t46t6vydkvsxekkvf3fjnpzy5wbuhphqz serial...
The programming statements that can be used in a PL/SQL application include: assignment, DELETE, EXECUTE IMMEDIATE, INSERT, NULL, SELECT INTO, and UPDATE.
所有的SQL数据操作语句都可以用于执行部分,PL/SQL块不能在屏幕上显示SELECT语句的输出。SELECT语句必须包括一个INTO子串或者是游标的一部分,执行部分使用的变量和常量必须首先在声明部分声明,执行部分必须至少包括一条可执行语句,NULL是一条合法的可执行语句,事物控制语句COMMIT和ROLLBACK可以在执行部分使用,数据定义语言DDL...
The programming statements that can be used in a PL/SQL application include: assignment, DELETE, EXECUTE IMMEDIATE, INSERT, NULL, SELECT INTO, and UPDATE.
PL/SQL Basic --PL/SQL块结构DECLARE/**定义部分-定义常量,变量,复杂数据类型,游标。 可选 没有;*/BEGIN/**执行部分-sql语句 必须 没有;*/EXCEPTION/**例外处理部分-处理运行错误 可选 没有;*/END;/*块结束标志 必须;*/setserveroutputonBEGINDBMS_OUTPUT.PUT_LINE('Hello');END;DECLAREv_enameVARCHAR...
(2)PL/SQL fullysupports SQL data types. You need notconvert between PL/SQL and SQL data types. For example, if your PL/SQL programretrieves a value from a column of the SQL type VARCHAR2, it can storethat value in a PL/SQL variable of the type VARCHAR2. ...
This chapter covers basic reference material on how to write programs in PL/SQL and their examples. PL/SQL allows dependencies between commands within the same block of code. It also allows for parameter passing up and down code block hierarchies. PL/SQL contains a definition of variable scope...
Before getting started, we highly recommendsetting up an Oracle database in your systemto help you practice and learn PL/SQL effectively. Basic PL/SQL Tutorial We assume that you have the fundamental knowledge of databases and SQL to start our PL/SQL tutorial. If this is not the case, you...
1. Naming Your Program Data 2. Overview of PL/SQL Datatypes Character Data CHAR and NCHAR are fixed-length datatypes; VARCHAR2 and NVARCHAR2 are variable-length datatypes. PL/SQL has the CLOB (character large object) and NCLOB (National Language Support CLOB) datatypes. For backward compatibilit...
PL/SQL是Oracle数据库对SQL语句的扩展。在普通SQL语句的使用...Oracle + PlSql 下载安装配置 一.Oracle下载及安装 1.地址:http://www.oracle.com/technetwork/database/enterprise-edition/downloads/112010-win64soft-094461.html 2.下载两个压缩包: 3.解压:将这两个压缩包解压到同一个文件目录下 4.安装...