OpenEdge Data Management: DataServer for Microsoft SQL Server

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Chapter 1: Introduction Configuring distributed DataServer applications using ProBroker Figure 6 shows an example of a distributed DataServer configuration that uses ProBroker. The figure illustrates how to combine clients and servers that run on different platforms. OE Mgmt/ OE Explorer Schema holder Server Host (-H) Data source OpenEdge DataServer client ProBroker DataServer server-n Figure 6: The distributed DataServer for MS SQL Server using ProBroker In Figure 6, the OpenEdge client runs on a client machine (either in Windows or on UNIX) and can access a remote Windows server. Multiple brokers can be running simultaneously on one server machine. The client connects initially to the ProBroker executable by locating the host and port of the executing broker. It is then automatically reconnected to a DataServer established for it by the broker. Each executing broker can spawn a multitude of DataServer processes. A spawned DataServer process uses the ODBC driver to locate and connect to the data source. The actual target database might be either local or remote to the host machine. Note that in this example, the schema holder also runs on the Windows client; however, you can optionally locate it on any host that is accessible on your network. Each spawned DataServer can service database requests for the same database or for a different database than those of other spawned servers. In remote DataServer configurations, OpenEdge handles the communication between the client and the server. The client and server processes that make up the DataServer adapt to a variety of network configurations. 48 OpenEdge Data Management: DataServer for Microsoft SQL Server
DataServer configurations Configuring distributed DataServer applications using the Unified Broker Framework The Unified Broker Framework is a system administration framework that provides a consistent interface in which specific OpenEdge products such as the DataServer for MS SQL Server can be managed. It supports elements that allow you to perform such common administrative tasks as • Starting and stopping processes • Managing, configuring, and validating property files These elements include the OpenEdge Management/OpenEdge Explorer configuration tool, mergeprop utility, and command-line utilities. The framework also facilities activities that are fundamental to the MS SQL Server DataServer’s broker-based technology. For example, the AdminService, the framework’s central element, enables supported products like the DataServer for MS SQL Server in managing an application’s resources. For details about the Unified Broker Framework, its elements, and the OpenEdge products that employ its features, see OpenEdge Getting Started: Installation and Configuration. A closer look at the OpenEdge Management or OpenEdge Explorer interface OpenEdge Management or OpenEdge Explorer is a graphical user interface that provides an easy way for you to manage OpenEdge servers. This interface runs as a Windows client and works with another administration component, the AdminService, to provide a client/server framework for managing the following OpenEdge servers. Using OpenEdge Management or OpenEdge Explorer, you can: • Create new instances of OpenEdge servers and configure their property settings • Modify property settings of existing OpenEdge server instances • Start and stop OpenEdge servers • Monitor the status of OpenEdge servers For more information about working with OpenEdge Management or OpenEdge Explorer, see OpenEdge Management or OpenEdge Explorer online help. Using the mergeprop utility The mergeprop utility is a command-line utility that supports functionality similar to that supported by the OpenEdge Management or OpenEdge Explorer configuration tool. It is an alternative approach to configuring and managing the content of the OpenEdge property files. Property files, such as the ubroker.properties file used by the DataServer, store configuration information that specifies and controls the behavior of various components. OpenEdge Data Management: DataServer for Microsoft SQL Server 49
Page 1 and 2: ® ® 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: The remote DataServer configuration
Page 51 and 52: Software requirements Software requ
Page 53 and 54: Guidelines for using the DataServer
Page 55 and 56: Initial Programming Considerations
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
Page 77 and 78: Table 11: MS SQL Server 2008 dateti
Page 79 and 80: Performing data type conversions Da
Page 81 and 82: Enabling Datetime data types using
Page 83 and 84: 2008, or if you use a native driver
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
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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
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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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