OpenEdge Data Management: DataServer for Microsoft SQL Server

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Troubleshooting Tuning your environment with the –Dsrv startup parameter 8–2 The DataServer (–Dsrv) startup parameter allows you to use special DataServer options to tune your environment. You pass these options as arguments to –Dsrv when connecting to a MS SQL Server database. There are two versions of the syntax, as follows: Syntax CONNECT data-source-name -ld logical-name -dt MSS -Dsrv arg1,val1 -Dsrv arg2,val2 -Dsrv arg3,val3... Syntax CONNECT data-source-name -ld logical-name -dt MSS -Dsrv arg1,val1,arg2,val2,arg3,val3... In this syntax: • The schema holder is already connected. • The data–source–name argument is the name of the data source and the logical–name argument is its logical name, which is defined when you create your schema image. • You pass the options as the argn,valn pairs. Here is an example of how to use the CONNECT statement with the –Dsrv parameter: CONNECT mssql_db -ld mydb -U x -P y -Dsrv qt_debug,EXTENDED -Dsrv PRGRS_IDBUF,100 -Dsrv PRGRS_MINBUF,10000 -Dsrv MAX_R,10000. Note that MAX_R is an abbreviation of MAX_ROWS. You can abbreviate option names as long as they identify parameters uniquely. Both the syntax statements and the example show the use of the –Dsrv startup parameter in CONNECT statements. You can also specify –Dsrv options in a parameter file, on a program item command line, or in the Connection Parameters field in the Database Connect dialog box.
ODBC options Tuning your environment with the –Dsrv startup parameter The DataServer allows access to selected options defined in the ODBC interface by providing corresponding options that you can use with the -Dsrv startup parameter. Each OpenEdge-supplied ODBC option has a name of the form option–name and corresponds with a startup option in the ODBC interface having the name SQL_option–name. Table 8–1 lists the OpenEdge-supplied ODBC startup options and the corresponding startup options defined in the ODBC interface. Table 8–1: ODBC options OpenEdge-supplied option ODBC-defined option 1 ACCESS_MODE SQL_ACCESS_MODE ASYNC_ENABLE SQL_ASYNC_ENABLE AUTOCOMMIT SQL_AUTOCOMMIT LOGIN_TIMEOUT SQL_LOGIN_TIMEOUT MAX_LENGTH SQL_MAX_LENGTH MAX_ROWS SQL_MAX_ROWS MSS_PRESERVE_CURS SQL_MSS_PRESERVE_CURS 2 NOSCAN SQL_NOSCAN OPT_TRACE SQL_OPT_TRACE PACKET_SIZE SQL_PACKET_SIZE QUERY_TIMEOUT SQL_QUERY_TIMEOUT RESP_POLLCT SQL_RESP_POLLCT RESP_TIMEOUT SQL_RESP_TIMEOUT TXN_ISOLATION SQL_TXN_ISOLATION 1. Refer to an ODBC application developer’s guide for information on the ODBC-defined options. 2. Cursor preservation allows server side cursors to be preserved beyond the transaction boundary. See the “Preserve cursors—the -Dsrv MSS_PRESERVE_CURS,1 option” section on page 8–10 for information and warnings. When you specify an OpenEdge-supplied ODBC option with the -Dsrv startup parameter, the DataServer sends the option to the ODBC driver for processing by the ODBC interface. The following example of the -Dsrv startup parameter tells the ODBC driver to return no more than 1,000 rows to the OpenEdge application: -Dsrv MAX_ROWS,1000 Note: The DataServer generally sets the correct value automatically. Therefore, you should reserve use of the ODBC options for troubleshooting and fine-tuning purposes only. 8–3
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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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Connecting a schema holder Table 6-
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Connecting a schema holder 3. The v
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Page 215 and 216: Connecting a schema holder Note: Ap
Page 217 and 218: Connecting a schema holder The ABL
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Page 221 and 222: Setting the log file location Conne
Page 223 and 224: The DataServer Tutorial 7 This chap
Page 225 and 226: Preparing to create demonstration d
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Page 229 and 230: DataServer utilities When you acces
Page 231 and 232: Creating a schema holder 4. In the
Page 233 and 234: Updating a schema holder Updating a
Page 235 and 236: Verifying a schema holder Verifying
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Page 239 and 240: Changing connection information in
Page 241 and 242: Deleting a schema holder Deleting a
Page 243 and 244: Migrating an OpenEdge database to M
Page 249 and 250: Delta df to MS SQL Server Increment
Page 255 and 256: Modifying field-level information Y
Page 257 and 258: Defining the ROWID Modifying a sche
Page 259 and 260: Adding extended ABL support Adding
Page 261 and 262: Adding extended ABL support Using c
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Page 265: Troubleshooting This chapter descri
Page 269 and 270: Tuning your environment with the -D
Page 275 and 276: SVUB,x—the Unified Broker Server
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 285 and 286: Server Related Command Line Utiliti
Page 287 and 288: -validate -help Progress Explorer c
Page 289 and 290: -host host-name Progress Explorer c
Page 291 and 292: Progress Explorer command line util
Page 293 and 294: -user user-name Progress Explorer c
Page 295 and 296: Syntax Parameters service-name PROB
Page 297 and 298: Non-Progress Explorer command line
Page 299 and 300: Data Type Details C This appendix s
Page 301 and 302: ntext 9 nvarchar(max) SQL_NLONGVARC
Page 303 and 304: Using qt_debug to Analyze Performan
Page 305 and 306: Index Numbers 4GLTrans log entry ty
Page 307 and 308: Data types 2-17, C-1 changing 7-34
Page 309 and 310: K Key buffer troubleshooting 8-8 Ke
Page 311 and 312: Progress Explorer Framework 5-23 an
Page 313 and 314: Service Name (-S) shutdown paramete
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OpenEdge Data Management: DataServer for Microsoft SQL Server

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