The Language of SQL- P48 doc

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The Language of SQL- P48 doc

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20. On the Configuration Type screen, select STANDARD CONFIGURATION and then click the NEXT button. 21. On the Windows Options screen, check INSTALL AS WINDOWS SERVICE and make sure that LAUNCH THE MYSQL SERVER AUTOMATICALLY is checked; then click the NEXT button. 22. On the Security Option screen, enter a root password, if desired, and then click the NEXT button. 23. On the Ready to Execute screen, click the EXECUTE button. It should display the messages: Configuration file created, Windows service MySQL installed, Service started successfully. 24. Click the FINISH button. After this has completed, you will have the following software installed: ■ MySQL Command Line Client ■ MySQL Server Instance Config Wizard Installing MySQL Workbench The steps for installing the MySQL Workbench are as follows. Note that you need to be on version 5.2 or higher in order to execute SQL with the tool. At the time of publication, version 5.2 is only available as a beta release. 1. Go to dev.mysql.com. 2. Click on the DOWNLOADS tab. 3. Click MySQL WORKBENCH on the left pane. 4. Click on MySQL WORKBENCH. Make sure that it is version 5.2 or higher. 5. Select the MICROSOFT WINDOWS platform. 6. Click one of the DOWNLOAD buttons. 7. If you’re a returning user, log in. Otherwise, register as a new user if desired. 8. Click on HTTP next to one of the mirror files shown. Installing MySQL Workbench 221 9. When asked if you want to run or save the file, select the RUN button. The setup wizard will then start. 10. On the Welcome screen, click the NEXT button. 11. On the Setup Type screen, select COMPLETE and then click the NEXT button. 12. On the Ready to Install screen, click the INSTALL button. 13. On the Completion screen, click the FINISH button. After this has completed, you will have the following software installed: ■ MySQL Workbench version 5.2 Using MySQL Workbench When you first open MySQL Workbench after the initial install, you will need to establish a connection to your MySQL Server instance that you already installed. To create a connection, select MANAGE CONNECTIONS under the Databa se menu. Click the NEW button to add a new connection. Then enter a connection name (ex: MyConnection) and click the TEST CONNECTION button. Enter a password if you previously supplied one. Then click the CLOSE button. After creating the connection, you’ll need to create a database to work with. To do this, select QUERY DATABASE under the Database menu. Select the connection you just created and click the OK button. Enter a password if you previously supplied one. You will now see an SQL Editor pane on your screen. An Object Explorer area will appear on the left side of the pane. A SQL State- ments area will appear on the right side. In the Object Explorer, right-click any database and select CREATE SCHEMA. Enter the name of your new database (ex: FirstDatabase) in the Name textbox. Click the APPLY button twice and then the FINISH button. You will now see your new database in the Object Explorer. Finally, using the Default drop-down box at the top of the Object Explorer, select your new database as the default database. Now that a connection and database have been created, you can enter any desired SQL statement in the SQL Statements area of the SQL Editor pane. If you don’t see the SQL Editor pane, go back and select Query Database under the Appendix B ■ Getting Started with MySQL222 Database menu as described previously. As before, this will ask you to select a connection. After entering a SQL statement in the SQL Statements area, click the EXECUTE button, which looks like a lightning bolt. If you enter multiple statements in the window, you can highlight one individual statement and execute only the high- lighted portion. The results of your query will be shown under an Output or Result pane after the query is executed. If there is data to be shown, it will appear in a Result pane. Otherwise, a status message will appear under an Output pane. MySQL provides complete documentation on their database. The MySQL reference manual is currently at: http://dev.mysql.com/doc/refman/5.1/en Using MySQL Workbench 223 This page intentionally left blank appendix C Getting Started with Oracle Overview The procedure to install the free version of Oracle Database is as follows. This procedure was tested on a PC with the Windows 7 operating system. Please note that the specific instructions may vary from what is shown below, depending on what is already installed on your PC. As these procedures may change over time, please consult www.courseptr.com/ downloads for any updates. There is one step involved: Install Oracle Database Express Edition. This installation will create a single database and provide a Web-based graphical interface that will allow you to execute SQL commands against the database. This download is available at www.oracle.com/database. As part of the install process, you may be asked to enter a database username. The name you should enter is SYSTEM. Installing Oracle Database Express Edition The steps for installing Oracle Database Express Edition are as follows. 1. Go to www.oracle.com/database. 2. Click on EXPRESS EDITION found on the left side of the page. 225 . or save the file, select the RUN button. The setup wizard will then start. 10. On the Welcome screen, click the NEXT button. 11. On the Setup Type screen, select COMPLETE and then click the NEXT button. 12 in the Name textbox. Click the APPLY button twice and then the FINISH button. You will now see your new database in the Object Explorer. Finally, using the Default drop-down box at the top of the. appear on the left side of the pane. A SQL State- ments area will appear on the right side. In the Object Explorer, right-click any database and select CREATE SCHEMA. Enter the name of your new

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Mục lục

  • Contents

  • Introduction

  • Chapter 1 Relational Databases and SQL

    • Language and Logic

    • SQL Defined

    • Microsoft SQL Server, Oracle, and MySQL

    • Other Databases

    • Relational Databases

    • Primary and Foreign Keys

    • Datatypes

    • NULL Values

    • The Significance of SQL

    • Looking Ahead

    • Chapter 2 Basic Data Retrieval

      • A Simple SELECT

      • Syntax Notes

      • Specifying Columns

      • Column Names with Embedded Spaces

      • Looking Ahead

      • Chapter 3 Calculations and Aliases

        • Calculated Fields

        • Literal Values

        • Arithmetic Calculations

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