OpenEdge Data Management: DataServer for Microsoft SQL Server

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Chapter 1: Introduction Documentation resources Table 3 shows reference sites in this manual that explain different approaches to using the DataServer for MS SQL Server. Table 3: How to use this manual If you are . . . Refer to this information . . . New to the DataServer for MS SQL Server Migrating an OpenEdge database to a MS SQL Server data source Upgrading from an earlier version of MS SQL Server Chapter 2, “Initial Programming Considerations” Chapter 5, “Configuring the DataServer” Chapter 6, “Connecting the DataServer” Chapter 7, “The DataServer Tutorial” The “Running the OpenEdge DB to MS SQL Server utility” section on page 294 Chapter 2, “Initial Programming Considerations” Chapter 5, “Configuring the DataServer” Chapter 6, “Connecting the DataServer” Appendix A, “Migration Issues” Chapter 5, “Configuring the DataServer” Table 4 lists manuals from the OpenEdge documentation set that contain useful information on different aspects of DataServer usage. Table 4: DataServer-related topics Topic OpenEdge manuals Starting and setting up OpenEdge products OpenEdge Getting Started: Installation and Configuration Using the Data Dictionary OpenEdge Getting Started: ABL Essentials Defining security for an OpenEdge database Writing applications in the ABL Connecting your data source with WebSpeed Writing WebSpeed applications OpenEdge Data Management: Database Administration OpenEdge Development: ADM and SmartObjects OpenEdge Getting Started: ABL Essentials OpenEdge Getting Started: Installation and Configuration OpenEdge Application Server: Developing WebSpeed Applications 54 OpenEdge Data Management: DataServer for Microsoft SQL Server
Initial Programming Considerations OpenEdge Data Management: DataServer for Microsoft SQL Server 55 2 An application developed in the OpenEdge Studio can use the DataServer for MS SQL Server to access data from multiple sources transparently. With the DataServer, your applications can access information in both OpenEdge databases and MS SQL Server databases. This chapter discusses fundamental considerations you need to know to plan your applications and design your databases. For example, you need to know the differences between OpenEdge databases and MS SQL Server databases, as well as the DataServer strategies for resolving these differences, which your application might need to accommodate. Specifically, it discusses the topics in the following sections: • Database design issues • Data types • Record creation • Data source record locking • Transactions • Error handling • Cursors • ABL issues • RDBMS stored procedures 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.”
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® ® PROGRESS® OPENEDGE® OpenEdg
Page 3 and 4: Contents Preface . . . . . . . . .
Page 5 and 6: Contents Data output and retrieval
Page 7 and 8: Contents Migrating an OpenEdge data
Page 9 and 10: Tables Contents Table 1: DataServer
Page 11 and 12: Examples Contents Example 1: Passin
Page 13 and 14: Preface This Preface contains the f
Page 15 and 16: Chapter 5, “Configuring the DataS
Page 17 and 18: Before you begin Preface Before att
Page 19 and 20: In this example, STREAM stream, UNL
Page 21 and 22: After displaying a message, OpenEdg
Page 23 and 24: Preface Software Foundation (http:/
Page 25 and 26: Preface use, copy, modify, and dist
Page 27 and 28: Preface DISCLAIMS ALL WARRANTIES WI
Page 29 and 30: Preface INCLUDING ALL IMPLIED WARRA
Page 31 and 32: Preface WARRANTIES OF MERCHANTABILI
Page 33 and 34: Preface conditions for packages lik
Page 35 and 36: Introduction OpenEdge Data Manageme
Page 37 and 38: DataServer components DataServer co
Page 39 and 40: DataServer for MS SQL Server logic
Page 41 and 42: Figure 3 illustrates the schema-loa
Page 43 and 44: DataServer utilities DataServer uti
Page 45 and 46: DataServer configurations DataServe
Page 47 and 48: The remote DataServer configuration
Page 49 and 50: DataServer configurations Configuri
Page 51 and 52: Software requirements Software requ
Page 53: Guidelines for using the DataServer
Page 57 and 58: Database design issues Database des
Page 59 and 60: MS SQL Server DataServer data sourc
Page 61 and 62: Client code page Database design is
Page 63 and 64: Support for Unicode Database design
Page 65 and 66: Indexes and sorting Database design
Page 67 and 68: Database design issues source’s c
Page 69 and 70: Triggers Database design issues Tri
Page 71 and 72: Data types Data types MS SQL Server
Page 73 and 74: Table 9: MS SQL Server data type eq
Page 75 and 76: Processing activities that require
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Page 79 and 80: Performing data type conversions Da
Page 81 and 82: Enabling Datetime data types using
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Page 85 and 86: Default and Special Datetime Defaul
Page 87 and 88: ABL-to-MS SQL Server data type mapp
Page 89 and 90: Unknown value (?) Data types The Da
Page 91 and 92: Record creation Suppose that you ha
Page 93 and 94: Data source record locking Data sou
Page 95 and 96: Handling lock timeouts Data source
Page 97 and 98: Locking impact on queries Data sour
Page 99 and 100: Data source record locking When thi
Page 101 and 102: To avoid this type of problem, the
Page 103 and 104: 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
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Logging levels You can choose one o
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Enabling ABL to SQL Correlation in
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Connecting a schema holder Example
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Connection failures and OpenEdge re
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Connection failures and OpenEdge re
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Using the $UNIQUE_DSLOG environment
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The DataServer Tutorial OpenEdge Da
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Demonstration databases for DataSer
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Preparing to create demonstration d
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DataServer utilities When you acces
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Prime to ROWID identification ROWID
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Prime to ROWID identification inacc
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Creating a schema holder • Choose
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Creating a schema holder You can se
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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 2. Type p
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Changing connection information in
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Deleting a schema holder Deleting a
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Managing server attributes See the
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Managing server attributes Defining
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Managing server attributes If the p
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Managing server attributes 6. The P
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Defining a default constraint defin
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Managing server attributes 5. Click
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Managing server attributes • Resu
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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 4. Chan
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Adding extended ABL support 3. Drop
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Troubleshooting This chapter descri
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ODBC options ODBC options The DataS
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ODBC options Table 56: DataServer o
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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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OpenEdge Data Management: DataServer for Microsoft SQL Server

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