OpenEdge Data Management: DataServer for Microsoft SQL Server

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Chapter 7: The DataServer Tutorial Caution: The values entered for are unchecked for correctness against the defined data type. For fields with an Initial Value, the Constraint Expression is populated with the initial value. The Constraint Expression value for the Default constraint definition is not required to match the Initial Value, however, they should normally match as there may otherwise be conflicts regarding what value to use as the default when creating a server record. The initial value is used in a client-side template record when new records are created, and overrides default constraint definitions on the server side when records are created in an OpenEdge application. The default constraint definition is applied only when an initial value is not supplied by the template record of an OpenEdge application and the column is also left blank by the user when the record is created. Note: Since default constraints are tied to the server column, non-OpenEdge applications will get their defaults from the constraint migrated from the default constraint definition. 9. Optionally, add a description of the constraint definition in the Description box. 10. Click OK to save the constraint definition and exit the dialog box. Click Create to save the constraint definition and remain in the dialog box and continue defining constraint definitions for the selected table. Modifying an existing constraint definition Once you have defined a constraint definition, you can change a subset of a constraint definition’s properties. The following steps demonstrate how to modify a constraint definition. To modify a constraint definition: 1. Start Data Administration and connect to the OpenEdge database you are migrating. 2. Select DataServer→ MS SQL Server Utilities→ Server Attributes→ View/Maintain Foreign Constraint Definitions. The View/Maintain Foreign Constraint Definitions dialog box appears. 3. Select the table and constraint definition you want to modify, and click Constraint Properties. The Modify Foreign Constraint Definitions for tablename dialog box appears. 4. The Modify Foreign Constraints for tablename dialog box is very similar to the Create Foreign Constraint Definitions for tablename dialog box, with the exception being that only modifiable fields are active. Modify your constraint definition as required. Note: If the constraint definition property you want to change is not modifiable, you can delete the existing constraint definition and define a new one. 288 OpenEdge Data Management: DataServer for Microsoft SQL Server
Managing server attributes 5. Click OK to save the changes to the constraint definition and exit the dialog box. Click Create to save the changes to the constraint definition and remain in the dialog box. Activating or deactivating a class of existing constraint definitions Once you have defined constraint definitions, you can activate or deactivate a whole class of constraint definitions at once. When a constraint definition is deactivated, it is unidentified and disabled during a subsequent migration. The following steps demonstrate how to activate or deactivate a class of constraint definitions. To activate a class of constraint definitions: 1. Start Data Administration and connect to the OpenEdge database you are migrating. 2. Select DataServer→ MS SQL Server Utilities→ Server Attributes→ Activate/Deactivate Constraints. The Activate/Deactivate Constraint Definitions dialog box appears, as shown in Figure 21. Figure 21: Activate/Deactivate Constraint Definitions dialog box 3. Chose the Activate or Deactivate toggle. 4. Select a constraint definition type or ALL. 5. Click OK to activate or deactivate constraint definitions and exit the dialog box, or click Cancel to exit without changing the state of the constraint definitions. OpenEdge Data Management: DataServer for Microsoft SQL Server 289
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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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Value pairs within the connect stri
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Connecting a schema holder Table 31
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qt_separate_connection qt_no_separa
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Connecting a schema holder Table 33
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Connecting a schema holder 1. Each
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Table 38 lists the DataServer log e
Page 237 and 238: Logging levels You can choose one o
Page 239 and 240: Enabling ABL to SQL Correlation in
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
Page 249 and 250: The DataServer Tutorial OpenEdge Da
Page 251 and 252: Demonstration databases for DataSer
Page 253 and 254: Preparing to create demonstration d
Page 259 and 260: DataServer utilities When you acces
Page 261 and 262: Prime to ROWID identification ROWID
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Page 265 and 266: Creating a schema holder • Choose
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Page 269 and 270: Updating a schema holder Updating a
Page 271 and 272: Verifying a schema holder Verifying
Page 273 and 274: Verifying a schema holder 2. Type p
Page 275 and 276: Changing connection information in
Page 277 and 278: Deleting a schema holder Deleting a
Page 279 and 280: Managing server attributes See the
Page 281 and 282: Managing server attributes Defining
Page 283 and 284: Managing server attributes If the p
Page 285 and 286: Managing server attributes 6. The P
Page 287: Defining a default constraint defin
Page 291 and 292: Managing server attributes • Resu
Page 293 and 294: Migrating an OpenEdge database to M
Page 303 and 304: Delta df to MS SQL Server Increment
Page 309 and 310: Modifying field-level information Y
Page 311 and 312: Defining the ROWID Modifying a sche
Page 313 and 314: Adding extended ABL support Adding
Page 315 and 316: Adding extended ABL support 4. Chan
Page 317 and 318: Adding extended ABL support 3. Drop
Page 319 and 320: Troubleshooting This chapter descri
Page 321 and 322: ODBC options ODBC options The DataS
Page 323 and 324: ODBC options Table 56: DataServer o
Page 325 and 326: Using MS SQL Server and DataServer
Page 327 and 328: Large rows—the PRGRS_MINBUF optio
Page 329 and 330: ODBC options Wait time for asynchro
Page 331 and 332: Using the block cursor switches ODB
Page 333 and 334: Migration Issues This appendix disc
Page 335 and 336: Modifying your application Note the
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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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