SQL Tutorial(暂未上线)v1.0.4安卓客户端

SQL is very important language and is used all over the industry.This application provides a detailed description of almost every topic of sql.You can now execute queries in the ...

ORACLE SQL Tutorial

sql:table-relation,row-tuple,column-attribute 一个table最多254个column 可使用的数据类型: char（n长度的字符串）， varchar（不固定长度的字符串）， number（o，d）-o：总位数，d：小数点...

SQL教程 SQL Tutorial Free(暂未上线)v1.0.0安卓客户端

这是一款SQL快速教程应用程序。本教程将让你访问SQL(结构化查询语言)，在甲骨文，MySQL，DB2中，和其他数据库系统。快速参考，语法和定义简.

[SQL Tutorial]Triggers

CREATE-TRIGGER `event_name` BEFORE/AFTER INSERT/UPDATE/DELETE-ON `database`.`table`-FOR EACH ROW BEGIN-trigger body-this code is applied to every-inserted/updated/deleted row-END;...

pl/sql tutorial

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 ...

sql

sql_tutorial What is SQL?SQL is structured Query Language which is a computer language for storing,manipulating and retrieving data stored in relational database.SQL is the ...

[SQL Tutorial]Functions

Find the number of employees SELECT COUNT(super_id)FROM employee;Find the average of all employee's salaries SELECT AVG(salary)FROM employee;Find the sum of all employee's salaries...