[顶]ORACLE PL/SQL编程详解之二: PL/SQL块结构和组成元素(为山九仞,岂一日之功) 继上四篇:ORACLE PL/SQL编程之八:把触发器说透                ORACLE PL/SQL编程之六:把过程与函数说透(穷追猛打,把根儿都拔起!)                [推荐]ORACLE PL/SQL编程之四:把游标说透(不怕做不到,只怕想不到) [推荐]ORACLE PL/SQL编程之五:异常错误处理(知已知彼.百战不殆)  昨天与我的一个朋友聊天,他可是技…

可以使用如下的方式: STR := q'[ CREATE TABLE TNAME AS SELECT ... FROM INPUT_TABLE IP WHERE ((IP.DATE_FIELD = TO_DATE(', 'DD.MM.sYYYY'))) ]'; 解决方案来自:https://stackoverflow.com/questions/18096740/use-of-single-quote-and-double-single-quote-in-pl-sql-block 以上…

SQL is not very flexible and it cannot be made to react differently to differing sutuations easily. In  SQL queries we normally tell database what we want but not tell it how to do it. SQL : give commands, commands complete with ; PL/SQL : follow the…

A PL/SQL block has the following structure: [DECLARE declaration_statements ] BEGIN executable_statements [EXCEPTION exception_handling_statements ] END; / []中是可选的.…

触发器:存放在数据库中,并被隐含执行的存储过程. 由触发事件,触发条件,触发操作组成. DML触发器:指定触发器时机(before or after),触发事件(insert  , delete, update),表名,触发类型,触发条件,触发操作 语句触发器: create [or replace] trigger trigger_name timing event1 [or event2 ..] on table_name PL/SQL block; trigger_name 触发器名 ev…

function & procedure packages function --> arguments or parameters with arguments, IN, read only pass values inside the function eg : select * from emp where empno = IN OUT : write only, get value from inside the function eg : select ename into OUT…

DDL commands --> create user / table / view / sequence alter DML --> data manipulation language (insert, select, update, delete) eg : SELECT ename FROM emp WHERE sal = (SELECT MAX(sal) FROM EMP); %type(single col), %rowtype(single row/record) cursor…

http://plsql-tutorial.com/plsql-procedures.htm What is PL/SQL? PL/SQL stands for Procedural Language extension of SQL. PL/SQL is a combination of SQL along with the procedural features of programming languages. A Simple PL/SQL Block: Each PL/SQL prog…

原文参考:http://plsql-tutorial.com/ 组成: 声明部分(可选) 执行部分(必选) 异常处理(可选)       声明:         DECLARE       执行:         BEGIN             ...         END       异常处理:         EXCEPTION   每个语句必须以“;”结束: PL/SQL Block可嵌套: /表示执行PL/SQL块: 优点: 块结构         可嵌套,任务或者逻辑模块的集合,…

一. Bulk 概述 本来只想测试一下Bulk Collect 和update性能的,但发现Bulk 的东西还是很多的,在OTN上搜了一些,整理如下. 1.1 Bulk Binding 和 Bulk SQL From:  http://download.oracle.com/docs/cd/E11882_01/appdev.112/e17125/adfns_packages.htm#ADFNS343 Oracle Database uses two engines to run PL/SQL b…