OpenEdge Data Management: DataServer for Microsoft SQL Server

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The DataServer Tutorial 7–36 To select an index to support the ROWID function, use the following procedure in the Data Dictionary with the schema holder connected (you do not have to connect to the MS SQL Server database). To select an index to support the ROWID function: 1. Choose Tables mode. 2. Select the table whose ROWID you want to modify. 3. Choose Table Properties. 4. Choose DataServer. The following dialog box appears: 5. Double-click an index name listed in the Name field to display detailed information about its attributes. The following dialog box appears: 6. Choose OK to return to the ROWID Choices dialog box. 7. Select the index you want to use to support ROWID. 8. Choose OK to return to the Table Properties dialog box.
Adding extended ABL support Adding extended ABL support The DataServer provides support for arrays and the RECID/ROWID function when certain objects exist in a data source. You can modify your data source to enable support for these extended features. You can also add support when you create new tables. The DataServer maintains the columns that you add to your data source tables to support the RECID/ROWID function. If non-OpenEdge applications are updating those data source tables, the applications must recognize the additional columns and update them appropriately. You can enable tables either through the use of triggers or through the use of computed columns. The use of computed columns is the preferred method as it offers greater efficiency and reliability, however it is only available when using MS SQL Server 2005 or later versions. The following sections describe how to modify an existing data source so that it supports arrays, and OpenEdge record identifiers. See the “ROWID function” section on page 2–52 for alternate ways to support this function. Modifying tables to support arrays The DataServer allows you to extend OpenEdge’s ability to support database arrays to your data source. To have access to this functionality, you must make changes to your data source table. To modify a table to support arrays: 1. Name the columns of a data source table that you want the DataServer to roll into an array column##1, column##2, etc. The columns must be adjacent and in sequence. 2. Make sure that these columns are of the same data type and size. For example, if you want the schema holder to include an array named MONTH with 12 elements, the data source table must have 12 adjacent columns of the same data type named month##1, month##2, month##3, and so forth. OpenEdge names the corresponding field in the schema holder month. In your applications, refer to each element of the array as month[1], month[2], month[3], and so forth. 3. If you have already created your schema holder, update it to reflect your changes to the data source table. Using triggers to enable PROGRESS_RECID support of the ROWID function If you want to use the ROWID function with a data source, you must select an index to associate with this function. Adding a new integer column named PROGRESS_RECID and defining it as a single-component index is the preferred method. This method can only be applied to a table that does not currently have an identity column defined. If your table already has an identity column, you can support ROWID by selecting an existing index. See the “Defining the ROWID” section on page 7–35 for instructions on selecting an existing index. The following procedure describes how to create the PROGRESS_RECID column to support ROWID. To use the ROWID function with a MS SQL Server database, you must make changes to your data source table. Note: Starting in OpenEdge Release 10.1B, the default PROGRESS_RECID recognizes an INT64 value for a MS SQL Server DataServer. The unique key value in the PROGRESS_RECID 7–37
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PROGRESS® 10 OPENEDGE® OpenEdge®
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Contents Preface . . . . . . . . .
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Contents Values of output parameter
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Contents 8. Troubleshooting. . . .
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Tables Contents Table 1-1: DataServ
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Examples Contents Example 3-1: Pass
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Preface This Preface contains the f
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Chapter 5, “Configuring the DataS
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Typographical conventions This manu
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Preface A called external procedure
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Preface Obtaining more information
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Preface Copyright © 1991 by Lucent
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Preface OpenEdge includes Sonic sof
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Preface WARRANTIES, INCLUDING, BUT
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Introduction 1 The OpenEdge® DataS
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DataServer components DataServer co
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DataServer for MS SQL Server logic
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DataServer components If you plan t
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DataServer utilities DataServer uti
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DataServer configurations DataServe
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DataServer configurations Configuri
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Typical configuration scenarios Dat
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Guidelines for using the DataServer
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Documentation resources Documentati
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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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Database design issues For example,
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Support for Unicode Database design
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Database design issues restrictions
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Database design issues For example,
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OpenEdge sequences Database design
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Data types MS SQL Server data types
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Table 2-5: MS SQL Server data type
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Determining your application needs
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Data types The ABL DATETIME and DAT
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Data types Table 2-10 provides deta
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Schema Migration > OpenEdge DB to M
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Default and Special Datetime Defaul
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Table 2-12 depicts mapping between
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Record creation Record creation Rec
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Record creation The VALIDATE or REL
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Share locks Data source record lock
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Additional record locking details D
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Data source record locking to be lo
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Transactions Transactions With Data
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Error handling Error handling One c
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Overflow checking Error handling Ov
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Impact of MAX-ROWS Cursors The MAX-
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Block cursors on versus off Cursors
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ABL issues • If you force the cre
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ABL issues Include the SCROLLING op
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ABL issues When you run find.p with
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NO-LOCK option 1 SHARE-LOCK option
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RDBMS Stored Procedure Details 3 Th
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RDBMS stored procedure basics RDBMS
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RDBMS stored procedure basics schem
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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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Data output and retrieval options D
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Interfacing with RDBMS stored proce
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Technique to use proc-text-buffer I
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Loading result sets into temp-table
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Details about a dynamic temp-table
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Handling errors • If you try to e
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ROWID Support It is important to no
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ROWID Support If the table uses com
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DEFINE VARIABLE hSendSQL AS HANDLE
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Additional Features to Enhance Data
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Enhancements overview For installat
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Firehose and Fast Forward-Only Curs
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• Lowest connection value • Num
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Query tuning Query tuning How you s
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LOOKAHEAD NO-LOOKAHEAD SEPARATE-CON
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Caching records Caching records The
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Join by SQLDB FOR EACH customer, EA
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Modifying the run-time schema check
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Configuring the DataServer 5 Config
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DataServer components Table 5-1: In
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Configuring a local DataServer Conf
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Configuring a remote DataServer 5.
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Configuring a remote DataServer For
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Configuring a remote DataServer Whe
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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 4. Start t
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Creating a schema holder Table 5-4
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Creating a schema holder You can al
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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 Starti
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Starting a remote DataServer For ex
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Connecting a schema holder Connecti
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Direct Connect (-DirectConnect) Pas
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Note the following command syntax u
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Use the PRGRS_CONNECT parameter in
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Page 229 and 230: DataServer utilities When you acces
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Page 235 and 236: Verifying a schema holder Verifying
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Page 241 and 242: Deleting a schema holder Deleting a
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Page 255 and 256: Modifying field-level information Y
Page 257: Defining the ROWID Modifying a sche
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Page 265 and 266: Troubleshooting This chapter descri
Page 267 and 268: ODBC options Tuning your environmen
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Page 277 and 278: Adjusting values Tuning your enviro
Page 279 and 280: Migration Issues A This appendix di
Page 281 and 282: Modifying your application Note the
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Page 299 and 300: Data Type Details C This appendix s
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Page 303 and 304: Using qt_debug to Analyze Performan
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K Key buffer troubleshooting 8-8 Ke
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Progress Explorer Framework 5-23 an
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Service Name (-S) shutdown paramete
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