Getting Startedwith pureQuery

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134 Getting Started with pureQuery pureQueryXml files, such as changing whether statements are candidates for static execution (that is, changing the value of the isBindable attribute). You can also modify statements, removing statements, and changing the groupings of statements. IBM recommends that you use the pureQueryXML editor, rather than editing pureQueryXml files manually. If you directly edit the contents of files, you could accidentally render the contents invalid. • Automatic capturing: You can use menu options to direct IBM Optim Development Studio to create a pdq.properties file for a pureQueryenabled project. The properties file that it creates causes pureQuery to capture. 6.14 Summary The pureQuery Client Optimizer enables you to improve easily the security, performance, and maintainability of JDBC applications. You first direct pureQuery to capture SQL statements that your application executes into a pureQueryXml file. Next, you use the Configure utility to prepare the file so that you can bind the statements in it and so that pureQuery can refer to it while an application is executing. Then, if you want to use static execution, you specify the file to the StaticBinder utility to direct it to bind the SQL statements in the file. Finally, you direct pureQuery to use the file while your application executes. Using the Client Optimizer allows you to execute the SQL in your application statically. It also allows you to restrict the SQL statement that your application can execute, even without using static SQL. It provides several other benefits as well, such as a way to replace easily SQL statements in an application and the ability to improve the security and performance of your application by using SQL literal substitution. 6.15 Review questions 1. What is the name of the pureQuery feature that you can use to use static SQL with JDBC applications? 2. What is the name of the Client Optimizer stage in which pureQuery creates a pureQueryXml file that contains the SQL statements that your application executes? 3. What is the name of the utility that you use to process pureQueryXml files that you capture before you use them for a bind or for static or dynamic execution? A. Generator B. Configure C. StaticBinder
Chapter 6 – The Client Optimizer: pureQuery for Existing Applications 135 D. Merge 4. In addition to specifying the pureQueryXml file to the Configure utility, which option must you always specify, and what does the utility do with the value of this option? 5. If you are using IBM Optim Development Studio, what is the name of the options file in which you must list the pureQueryXml files and the options that you want the Configure utility to use for them? A. Default.bindProps B. pdq.properties C. Default.genProps D. optionsFile.txt 6. What is the name of the utility that you must use to bind the SQL statements in a pureQueryXml file in a database? A. Generator B. Configure C. StaticBinder D. Merge 7. If you are using IBM Optim Development Studio, what is the name of the options file in which you can specify options for the StaticBinder utility to use when it binds pureQueryXml files? A. Default.bindProps B. pdq.properties C. Default.genProps D. optionsFile.txt 8. True or false: If you make any changes to a pureQueryXml file, such as by performing an incremental configure, you should process the file with the Configure utility before you use the file to bind or for static or dynamic execution. 9. Which of the following ways does IBM recommend that you use to modify pureQueryXml files? A. Create or add to the file by using pureQuery capture B. Process the file with the Configure utility C. Edit the file by using the IBM Optim Development Studio pureQueryXML editor D. Edit the file manually (that is, with any editor other than the pureQueryXML editor)
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G E T T I N G S T A R T E D W I T H
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Notices This information was develo
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Trademarks IBM, the IBM logo, DB2,
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1 Chapter 1 - Introduction to pureQ
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2 Chapter 2 - Installing pureQuery
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PART II - TOOLING
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13 Chapter 13 - Handlers In this ch
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Chapter 13 - Handlers 265 SELECT *
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Chapter 15 - pureQuery and pureXML
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A Appendix A - Solutions to the rev
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B.1.3 The “Employee Information
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E Appendix E - Options Files This a
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Resources Web sites 1. pureQuery pl
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