OpenEdge Data Management: DataServer for Microsoft SQL Server

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Additional Features to Enhance DataServer Performance Replacing FIND FIRST for performance 4–18 When coding ABL applications for the DataServer, FIND FIRST statements can often be replaced with other ABL statements to greatly improve performance. OPEN QUERYs and dynamic FINDs are significantly more efficient. Likewise, using FOR FIRST in place of FIND FIRST can improve performance when retrieving a single record with NO-LOCK. For example, if your application uses the following FIND FIRST code: FIND FIRST tablename WHERE where-clause NO-LOCK. The code can be replaced with the following for significant performance gains: FOR FIRST tablename WHERE where-clause NO-LOCK: END. In the case of the FOR FIRST, the record is not reliably available beyond the end of the FOR FIRST loop unless a LEAVE is specified. Similar performance advantages can be gained when retrieving last record as well.
Configuring the DataServer 5 Configuring the DataServer for MS SQL Server involves starting executables for several processes. This chapter provides step-by-step instructions for initially setting up the DataServer, as described in the following sections: • DataServer components • Configuring an ODBC driver and registering the data source • Configuring a local DataServer • Configuring a remote DataServer • Creating a schema holder • Maintaining a schema holder • Typical configuration for a remote client to connect to a remote DataServer Before you configure a DataServer, make sure that you have installed all of the required software. For details, see the “Software requirements” section on page 1–16.
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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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Page 115 and 116: Run Stored-Procedure details •
Page 117 and 118: Run Stored-Procedure details An exp
Page 119 and 120: Run Stored-Proc statement execution
Page 121 and 122: Data output and retrieval options D
Page 123 and 124: Interfacing with RDBMS stored proce
Page 125 and 126: Technique to use proc-text-buffer I
Page 129 and 130: Loading result sets into temp-table
Page 133 and 134: Details about a dynamic temp-table
Page 139 and 140: Handling errors • If you try to e
Page 141 and 142: ROWID Support It is important to no
Page 143 and 144: ROWID Support If the table uses com
Page 145 and 146: DEFINE VARIABLE hSendSQL AS HANDLE
Page 147 and 148: Additional Features to Enhance Data
Page 149 and 150: Enhancements overview For installat
Page 151 and 152: Firehose and Fast Forward-Only Curs
Page 153 and 154: • Lowest connection value • Num
Page 155 and 156: Query tuning Query tuning How you s
Page 157 and 158: LOOKAHEAD NO-LOOKAHEAD SEPARATE-CON
Page 159 and 160: Caching records Caching records The
Page 161 and 162: Join by SQLDB FOR EACH customer, EA
Page 163: Modifying the run-time schema check
Page 167 and 168: DataServer components Table 5-1: In
Page 169 and 170: Configuring a local DataServer Conf
Page 171 and 172: Configuring a remote DataServer 5.
Page 173 and 174: Configuring a remote DataServer For
Page 175 and 176: Configuring a remote DataServer Whe
Page 177 and 178: Configuring a remote DataServer The
Page 179 and 180: Creating a schema holder Creating a
Page 181 and 182: Creating a schema holder 4. Start t
Page 183 and 184: Creating a schema holder Table 5-4
Page 185 and 186: Creating a schema holder You can al
Page 187 and 188: Typical configuration for a remote
Page 189 and 190: Typical configuration for a remote
Page 191 and 192: Connecting the DataServer You can s
Page 193 and 194: Starting a remote DataServer Starti
Page 195 and 196: Starting a remote DataServer Starti
Page 197 and 198: Starting a remote DataServer For ex
Page 199 and 200: Connecting a schema holder Connecti
Page 201 and 202: Direct Connect (-DirectConnect) Pas
Page 203 and 204: Note the following command syntax u
Page 205 and 206: Use the PRGRS_CONNECT parameter in
Page 207 and 208: Connecting a schema holder Table 6-
Page 211 and 212: Connecting a schema holder 3. The v
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Connecting a schema holder Note: Ap
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Connecting a schema holder The ABL
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Connection troubleshooting Connecti
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Setting the log file location Conne
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The DataServer Tutorial 7 This chap
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Preparing to create demonstration d
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Preparing to create demonstration d
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DataServer utilities When you acces
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Creating a schema holder 4. In the
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Updating a schema holder Updating a
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Verifying a schema holder Verifying
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Verifying a schema holder 4. There
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Changing connection information in
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Deleting a schema holder Deleting a
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Migrating an OpenEdge database to M
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Delta df to MS SQL Server Increment
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Modifying field-level information Y
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Defining the ROWID Modifying a sche
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Adding extended ABL support Adding
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Adding extended ABL support Using c
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Adding extended ABL support create
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Troubleshooting This chapter descri
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ODBC options Tuning your environmen
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Tuning your environment with the -D
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SVUB,x—the Unified Broker Server
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Adjusting values Tuning your enviro
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Migration Issues A This appendix di
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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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-validate -help Progress Explorer c
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-host host-name Progress Explorer c
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Progress Explorer command line util
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-user user-name Progress Explorer c
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Syntax Parameters service-name PROB
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Non-Progress Explorer command line
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Data Type Details C This appendix s
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ntext 9 nvarchar(max) SQL_NLONGVARC
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Using qt_debug to Analyze Performan
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Index Numbers 4GLTrans log entry ty
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Data types 2-17, C-1 changing 7-34
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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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OpenEdge Data Management: DataServer for Microsoft SQL Server

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