Getting Started with IBM Data Studio for DB2

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226 Getting Started with IBM Data Studio for DB2 Figure 7.14 – Open Formatted Query view • Open Access Plan Graph shows a visual representation of the access plan that DB2 uses to run a statement, select as shown in Figure 7.15. The access plan graph is a collection of connected operators that depict the access plan for the statement. Figure 7.15 – Open Access Plan Graph view In the graph area, you can hover over any operator and summary information will popup including the operator’s estimated cardinality, and the total cost estimated by the DB2 optimizer.
Chapter 7 – Tuning queries 227 For more operator details, you can click or double click on the operator to see that information under Description of Selected Node. Note: You can also generate the plan graph by using the Open Visual Explain option from the SQL and XQuery editor as shown in Figure 7.9. More details on using Visual Explain option are provided in Section 7.5. 3. Open the Statistics Advisor summary by selecting Open Single-Query Advisor Recommendations as shown in Figure 7.16. Figure 7.16 – Open Single-Query Advisor Recommendations view 4. To see details of the recommendation, you can double click on the recommendation in the Summary tab, or you can right-click the Statistics row and select View Details, as shown in Figure 7.17.
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3 Notices This information was deve
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Table of contents 5 Table of conten
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3.3.1 Exporting data...............
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Chapter 7 - Tuning queries ........
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11.4 Community and resources ......
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Preface 13 Keeping your skills curr
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around the world have participated
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17 About the authors Dimple Bhatia
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Contributors 19 The following peopl
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21 Acknowledgements The authors owe
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24 Getting Started with IBM Data St
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100 Getting Started with IBM Data S
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103 Chapter 3 - Maintaining the dat
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Figure 3.35 - Selecting additional
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159 Chapter 5 - Creating SQL and XQ
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355 Appendix D - The Sample Outdoor
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Appendix E - Advanced topics for de
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E.5.4 Data web services artifacts A
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References 391 References [1] HAYES
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References 393 Books and articles 1
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396 Getting started with IBM Data S
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