OpenEdge Data Management: DataServer for Microsoft SQL Server

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Initial Programming Considerations 2–2 Follow these initial guidelines carefully when you develop your application to ensure that it can access OpenEdge databases and MS SQL Server databases transparently. Once you are comfortable with this information, refer to the stored procedure details presented in Chapter 3, “RDBMS Stored Procedure Details,” and the advanced guidelines in Chapter 4, “Additional Features to Enhance DataServer Performance.” Note: The material in this chapter is also of interest to users who plan to migrate an OpenEdge database to a MS SQL Server data source. However, such a migration raises additional issues that you must consider when designing your application. For details, see the “Running the OpenEdge DB to MS SQL Server utility” section on page 7–20.
Database design issues Database design issues When you create or modify the OpenEdge databases or MS SQL Server databases that your applications access, you must consider general database design issues such as OpenEdge and MS SQL Server database objects, naming conventions, code pages, indexes, and data types. The following sections describe how OpenEdge databases and MS SQL Server databases differ in such areas and how the DataServer resolves the differences. OpenEdge database objects and MS SQL Server database objects The OpenEdge database and the MS SQL Server database share the structural elements common to relational databases, but each system has its own elements. These elements, called database or data source objects, are components of the OpenEdge database or MS SQL Server databases’s logical structure. Table 2–1 lists OpenEdge database objects and the MS SQL Server database equivalents. Table 2–1: OpenEdge Database objects and MS SQL Server database objects OpenEdge MS SQL Server Table/File Table Field Column Record Row Index Index Unique index Primary key Nonunique index Foreign key Sequences Native equivalent 1 Validation expression Integrity constraint Validation message No equivalent Initial value Default View View. No equivalent to stored procedures Stored procedure. Schema Trigger Trigger 1. The DataServer supports OpenEdge sequences through native stored procedures and triggers. 2–3
Page 1 and 2: PROGRESS® 10 OPENEDGE® OpenEdge®
Page 3 and 4: Contents Preface . . . . . . . . .
Page 5 and 6: Contents Values of output parameter
Page 7 and 8: Contents 8. Troubleshooting. . . .
Page 9 and 10: Tables Contents Table 1-1: DataServ
Page 11 and 12: Examples Contents Example 3-1: Pass
Page 13 and 14: Preface This Preface contains the f
Page 15 and 16: Chapter 5, “Configuring the DataS
Page 17 and 18: Typographical conventions This manu
Page 19 and 20: Preface A called external procedure
Page 21 and 22: Preface Obtaining more information
Page 23 and 24: Preface Copyright © 1991 by Lucent
Page 25 and 26: Preface OpenEdge includes Sonic sof
Page 27 and 28: Preface WARRANTIES, INCLUDING, BUT
Page 29 and 30: Introduction 1 The OpenEdge® DataS
Page 31 and 32: DataServer components DataServer co
Page 33 and 34: DataServer for MS SQL Server logic
Page 35 and 36: DataServer components If you plan t
Page 37 and 38: DataServer utilities DataServer uti
Page 39 and 40: DataServer configurations DataServe
Page 41 and 42: DataServer configurations Configuri
Page 43 and 44: Typical configuration scenarios Dat
Page 45 and 46: Guidelines for using the DataServer
Page 47 and 48: Documentation resources Documentati
Page 49: Initial Programming Considerations
Page 53 and 54: MS SQL Server DataServer data sourc
Page 55 and 56: Database design issues For example,
Page 57 and 58: Support for Unicode Database design
Page 59 and 60: Database design issues restrictions
Page 61 and 62: Database design issues For example,
Page 63 and 64: OpenEdge sequences Database design
Page 65 and 66: Data types MS SQL Server data types
Page 67 and 68: Table 2-5: MS SQL Server data type
Page 69 and 70: Determining your application needs
Page 71 and 72: Data types The ABL DATETIME and DAT
Page 73 and 74: Data types Table 2-10 provides deta
Page 75 and 76: Schema Migration > OpenEdge DB to M
Page 77 and 78: Default and Special Datetime Defaul
Page 79 and 80: Table 2-12 depicts mapping between
Page 81 and 82: Record creation Record creation Rec
Page 83 and 84: Record creation The VALIDATE or REL
Page 85 and 86: Share locks Data source record lock
Page 87 and 88: Additional record locking details D
Page 89 and 90: Data source record locking to be lo
Page 91 and 92: Transactions Transactions With Data
Page 93 and 94: Error handling Error handling One c
Page 95 and 96: Overflow checking Error handling Ov
Page 97 and 98: Impact of MAX-ROWS Cursors The MAX-
Page 99 and 100: 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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Connecting a schema holder Table 6-
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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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