Oracle SQL is one of the most widely used database management systems around the world. It's well suited to power primarily commercial and enterprise applications, and is particularly popular at large companies with mission-critical databases. This introductory course will teach you all the essenti...
How to Install Oracle Express This video explains how to install Oracle Express, which is the database we’ll be using for this course. How to Download and Set Up SQL Developer This video explains how to download and set up SQL Developer, which is the IDE we’ll be using in this cours...
IntroductiontoOracle-SQL IntroductiontoOracle-SQL Additionalinformationisavailableinspeakernotes!1 Donortable Thedonortablecontains8fieldsorcolumns:IDNO,NAME,STADR,CITY,STATE,ZIP,DATEFST,YRGOALandCONTACT.Note:thenamesofthefields/columnsintheheaderbelowreferstoSTATEasSTsincethecolumnissmallandtheentirenamewillnot...
This chapter examines the history and evolution of data models and relational and Oracle databases. Relational data modeling and SQL are defined. The tools for executing SQL and sample tables are presented. Data modeling techniques have evolved from the use of simple file systems to relational, ...
Oracle SQL Analyze 2.1 introduces a number of new features that enhance the information you can use to tune your databases, and help automate the tuning process: The SQL Tuning Wizard now automatically flags SQL statements that contain problems that can be resolved by the Wizard, displaying a ...
PL/SQL procedure successfully completed. In order to re-execute the tuning task, we must first reset the results we have gathered. This is done by a simple call to RESET_TUNING_TASK. reset_tuning_task SQL> BEGIN 2 DBMS_SQLTUNE.RESET_TUNING_TASK ...
CHAPTER 1 Introduction to PL/SQL 4 Oracle Database 10g PL/SQL Programming W e've seen some really well-written code make some really lousy applications. Look at some of the beautifully written viruses that are out there, or some of the now-defunct software companies that turned out flashy ...
There are many popular SQL databases including SQLite, MySQL, Postgres, Oracle and Microsoft SQL Server. All of them support the common SQL language standard, which is what this site will be teaching, but each implementation can differ in the additional features and storage types it supports. ...
Introduction To SQL SQL是Structured Query Language的简称，意为结构化查询语言，它是一门用于与数据库进行通信和管理的语言 。SQL是操作关系型数据库的标准语言， 最早由IBM在1970年代开发。通过SQL可以对数据库进行多种操作：查询通过select语句从数据库中检索数据 数据定义通过create,alter,delete等语句创建、修改或...
SQL statements are used to perform tasks such as update data in a database, or retrieve data from a database. Some common relational database management systems that use SQL include Microsoft SQL Server, MySQL, PostgreSQL, MariaDB, and Oracle....