OpenEdge Data Management: DataServer for Microsoft SQL Server

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Chapter 7: The DataServer Tutorial Changing a code page in a schema holder Using the Change DataServer Schema Code Page utility, you can change the code page in a schema holder at any time. As a result, you can create a schema holder even if you do not have the correct code page information; you can add or correct the code page information at a later date. However, if you have been writing 8-bit character data to your data source with the DataServer and then you change the code page, the data is unaffected by the code page change. Note that your database might be corrupted if you start writing data with the DataServer and a schema holder that uses a new code page. To change a code page in a schema holder from the Data Administration tool: 1. Access the Data Administration, if you are not already there, and select DataServer→ MSS SQL Server Utilities→ Change DataServer Schema Code Page. The utility displays a message about the possibility of corrupting your database by using the wrong code page. 2. Choose OK to continue. The following dialog box appears: 3. Either accept the current value or type the data source code page that the data source supports. If you choose UTF-8 as your schema image code page, your schema holder’s code page must also be UTF-8. See OpenEdge Development: Internationalizing Applications for a complete list of code pages that OpenEdge supports. If you are using an unsupported code page, you are allowed to create your own conversion tables. 4. Choose OK to change the code page and return to the Data Administration main window. If you were connected to the schema holder and the data source when you chose to change the code page, OpenEdge disconnects you to make the change. The Connect Database dialog box appears to allow you to reconnect. 276 OpenEdge Data Management: DataServer for Microsoft SQL Server
Deleting a schema holder Deleting a schema holder The Delete DataServer Schema utility allows you to delete the schema holder of a data source. To delete a schema holder from the Data Administration tool: 1. Access the Data Administration and select DataServer→ MS SQL Server Utilities→ Delete DataServer Schema. A dialog box appears, prompting you to verify the deletion. 2. Choose Yes to verify your selection. After the schema holder is deleted, a confirmation message is displayed. 3. Choose OK to return to the Data Administration main window. OpenEdge Data Management: DataServer for Microsoft SQL Server 277
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® ® PROGRESS® OPENEDGE® OpenEdg
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Contents Preface . . . . . . . . .
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Contents Data output and retrieval
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Contents Migrating an OpenEdge data
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Tables Contents Table 1: DataServer
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Examples Contents Example 1: Passin
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Preface This Preface contains the f
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Chapter 5, “Configuring the DataS
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Before you begin Preface Before att
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In this example, STREAM stream, UNL
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After displaying a message, OpenEdg
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Preface Software Foundation (http:/
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Preface use, copy, modify, and dist
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Preface DISCLAIMS ALL WARRANTIES WI
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Preface INCLUDING ALL IMPLIED WARRA
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Preface WARRANTIES OF MERCHANTABILI
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Preface conditions for packages lik
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Introduction OpenEdge Data Manageme
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DataServer components DataServer co
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DataServer for MS SQL Server logic
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Figure 3 illustrates the schema-loa
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DataServer utilities DataServer uti
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DataServer configurations DataServe
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The remote DataServer configuration
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DataServer configurations Configuri
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Software requirements Software requ
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Guidelines for using the DataServer
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Initial Programming Considerations
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Database design issues Database des
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MS SQL Server DataServer data sourc
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Client code page Database design is
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Support for Unicode Database design
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Indexes and sorting Database design
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Database design issues source’s c
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Triggers Database design issues Tri
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Data types Data types MS SQL Server
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Table 9: MS SQL Server data type eq
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Processing activities that require
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Table 11: MS SQL Server 2008 dateti
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Performing data type conversions Da
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Enabling Datetime data types using
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2008, or if you use a native driver
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Default and Special Datetime Defaul
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ABL-to-MS SQL Server data type mapp
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Unknown value (?) Data types The Da
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Record creation Suppose that you ha
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Data source record locking Data sou
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Handling lock timeouts Data source
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Locking impact on queries Data sour
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Data source record locking When thi
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To avoid this type of problem, the
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Error handling If you use NO-ERROR
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Cursors Cursors A cursor is like a
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Cursors your specifications. Adjust
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• Block cursors are directly link
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FIND customer WHERE ROWID(customer)
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For example, the following statemen
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find.p /* This code accesses an Ope
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ABL issues Table 19 summarizes ABL
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RDBMS Stored Procedure Details Open
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RDBMS stored procedure basics RDBMS
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RDBMS stored procedure basics When
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Run Stored-Procedure details •
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Run Stored-Procedure details An exp
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Run Stored-Proc statement execution
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Run Stored-Procedure details Also n
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Loading results into a temp-table T
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Retrieving return codes Interfacing
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Interfacing with RDBMS stored proce
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Loading result sets into temp-table
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Employing additional enhancements I
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Handling errors Handling errors The
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ROWID Support This section presents
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ROWID Support The RUN STORED-PROC c
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ROWID Support If the table uses com
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Additional Features to Enhance Data
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Connection pooling Connection pooli
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DataServer connection management Co
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Firehose exclusions Connection pool
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Cursor downgrades Connection poolin
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Query tuning Query tuning How you s
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LOOKAHEAD NO-LOOKAHEAD SEPARATE-CON
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Query tuning Table 24: Query-tuning
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Join by SQLDB Join by SQLDB For que
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Table 25 describes how these contro
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Modifying the run-time schema check
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Configuring the DataServer Configur
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DataServer components Table 26: Ins
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Configuring a local DataServer Conf
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Configuring a remote DataServer 4.
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5162 Configuring a remote DataServe
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The ubroker.properties file Configu
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Configuring a remote DataServer Tab
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Configuring a remote DataServer The
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Creating a schema holder Creating a
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Creating a schema holder configurat
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Creating a schema holder 3. In the
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Creating a schema holder 10. Choose
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Typical configuration for a remote
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Typical configuration for a remote
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Connecting the DataServer You can s
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Starting a remote DataServer Starti
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Starting a remote DataServer If you
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Starting a remote DataServer Starti
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Connection guidelines Connection gu
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Connecting a schema holder at start
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Single-User Mode (-1) Read-Only (-R
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Using a remote DataServer configura
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Page 229 and 230: qt_separate_connection qt_no_separa
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Page 233 and 234: Connecting a schema holder 1. Each
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Page 237 and 238: Logging levels You can choose one o
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Page 241 and 242: Connecting a schema holder Example
Page 243 and 244: Connection failures and OpenEdge re
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Page 247 and 248: Using the $UNIQUE_DSLOG environment
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Page 259 and 260: DataServer utilities When you acces
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Page 265 and 266: Creating a schema holder • Choose
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Page 271 and 272: Verifying a schema holder Verifying
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Page 279 and 280: Managing server attributes See the
Page 281 and 282: Managing server attributes Defining
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Page 289 and 290: Managing server attributes 5. Click
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Page 311 and 312: Defining the ROWID Modifying a sche
Page 313 and 314: Adding extended ABL support Adding
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Page 319 and 320: Troubleshooting This chapter descri
Page 321 and 322: ODBC options ODBC options The DataS
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Page 325 and 326: Using MS SQL Server and DataServer
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Large rows—the PRGRS_MINBUF optio
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ODBC options Wait time for asynchro
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Using the block cursor switches ODB
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Migration Issues This appendix disc
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Modifying your application Note the
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Sample code for the db.owner.Custom
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Server Related Command Line Utiliti
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OpenEdge Management or OpenEdge Exp
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Syntax Parameters service-name PROB
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Other command line utilities for th
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Data Type Details C This appendix s
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nvarchar 8 SQL_NVARCHAR CHARACTER t
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Using qt_debug to Analyze Performan
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Using qt_debug to analyze performan
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Index Numbers 4GLTrans log entry ty
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display format 309 overflow checkin
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INPUT-OUTPUT option retrieving para
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DataServer (-Dsrv) startup paramete
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221, 242, 359 Schema defined 40 loa
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