Getting Started with IBM Data Studio for DB2

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374 Getting Started with IBM Data Studio for DB2 output format is XML by default. Example (HTTP GET with JSON response): http://localhost:8080/WebServicesSimpleService/rest/SimpleService/RankEmployee?EMPLYE E_CODE=10004&RANKING=Poor&_outputFormat=JSON E.2 Simplify access for single-row results You can use the Fetch only single row for queries option for query operations that you know will return only a single row to reduce the complexity of the service response data structure. It simplifies the message response by removing the tag around the single row result. Since it’s known that the query operation only returns one result row, the data web services runtime can skip the row delimiter tag in the response. TheRankEmployee operation for example always returns a single row only. To remove the tag: 1. From the Data Project Explorer, right-click the operation in your web service and select Edit, as shown in Figure E.7. Figure E.7 – Editing options for an operation 2. Select the Fetch only single row for queries option and click Finish as shown in Figure E.8.
Appendix E – Advanced topics for developing data web services 375 Figure E.8 – Specifying options for an existing operation 3. Re-deploy the web service to propagate your changes to the application server, as described in Chapter 10. When you open theRankEmployee operation, you will see that there is no tag, as shown in Listing E.4. 2009-06-27T21:57:08.109Z 2009 10004 5 Listing E.4 – The RankEmployee response message without a tag Data web services also changes the XML schema for the response message in the WSDL accordingly. E.3 Processing stored procedures result sets As was discussed in Chapter 10, there are some special considerations for stored procedures that return result sets. Data Studio uses DB2 catalog information to generate the XML schema file for the operation’s input and output messages. But the DB2 catalog does not contain metadata information about result sets returned by stored procedures.
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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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159 Chapter 5 - Creating SQL and XQ
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On Success On Error Result Chapter
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193 Chapter 6 - Managing jobs Job m
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Chapter 6 - Managing jobs 209 6.6.2
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213 Chapter 7 - Tuning queries In t
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Page 355 and 356: 355 Appendix D - The Sample Outdoor
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Page 391 and 392: References 391 References [1] HAYES
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