Programming Guide - Actian

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Performanceand database procedures • 85cell attributes • 228default null • 116null defaults • 116Polymorphismdefined • 125using • 130Popup framespredefined • 108Pop-up framescreating • 108Preprocessor#define statement • 437#if-#endif statement • 438#ifdef-#endif statement • 439#ifndef-#endif statement • 439#include statement • 434#undef statement • 438errors • 439macro variables • 435user-defined macro variables • 435PreviousField attribute • 330Proc4GLSource system class • 144Procedure handlesdescribed • 87Procedure statement • 76Procedures3GL • 804GL • 420as expression • 47BlocksFrames attribute • 106C • 82calling • 74calling in expressions • 86creating • 74database • 79global 4GL • 76including comments • 65name resolution • 23naming • 19passing parameters to • 84returning from • 77ProcExec system classDBSession attribute • 189described • 144popup frames • 109ProcHandle system classand error handlers • 88described • 87Prompt statementBlocksFrames attribute • 106described • 111ProtoField attribute • 232ProtoField system class • 228PurgeDBEvent method • 360PurgeUserEvent method • 347QQueriesparameterized • 175Query mode • 370QueryBias attribute • 372QueryObject objectDBDelete method • 181described • 177overview • 177Update method • 181QueryObject system classClose method • 178columns attribute • 178CommitToCache method • 178creating • 178DBDelete methods • 178DBInsert method • 178DBUpdate method • 178errors from methods • 199example • 178FetchRow method • 178grouping • 178having clause • 178Load method • 178NextRow method • 178Open method • 178PrevRow method • 178required attributes • 178SetCols method • 177where clause • 178QueryOps attributesettings • 243RRadio fieldsarranging display • 280Raise dbevent statement • 360Read mode • 370ReadBias attribute • 372514 <strong>Programming</strong> <strong>Guide</strong>
ReadOps attributesettings • 243Reference variables • 28creating objects • 31declaring • 28, 114defined • 28getting attributes • 117null defaults • 116nulls • 30passing • 101referencing • 28returning values • 86setting attributes • 117Referencingcurrent frames • 95Referencing objects • 98Refreshing display • 84, 101, 103Register dbevent statement • 359RegisterUserEvent method • 349Remove dbevent statement • 359RemoveRow method • 221Removingcolumns from a table field • 379fields from a form • 378ReplyPopup method • 109Result data type • 64Resume statementinterrupting an events block • 328PurgeUserEvent method • 347Terminate method • 334Retrieving datausing cursors • 160using QueryObjects • 177using SQL • 151using SQLSelect object • 166Return statementdescribed • 101procedures • 77Returning valuesand database procedures • 86callproc statement • 84gotoframe statement • 105popup frames • 109Right function • 54RowCount attributedescribed • 159Rows (in tables)counting • 62Rundbapp • 111Runimage • 111Ssample, external user event • 353Scalar functions • 51ScopeProcHandle objects • 87returning values • 101Script Editoraccessing from Debugger • 481Scriptscreating dynamically • 395creating in application • 395displaying in Debugger • 469editing in Debugger • 481for field or menu items • 71frame • 67frame script syntax • 67including comments • 65user class • 73user class method examples • 131using statements • 74writing • 67Scroll barfor table field • 235turning off/on • 237using arrowkeys • 237Scrollingevents and • 239to a specific row • 239using ActiveRow attribute • 239using scrollbar • 237using SetInputFocus method • 239Select statementdescribed • 149execute immediate statements • 156select loop • 149singleton form • 149variable table names • 151SendSuperclass method • 130SendUserEvent methodDelay parameter • 342described • 339example • 345Focusbehavior parameter • 341message parameters • 341parameters • 339resume statement • 341sending from 3GL to 4GL • 303Index 515
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Ingres OpenROAD ® 2006Programming
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ContentsChapter 1: Introduction 13I
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Using an Object-oriented Approach t
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How You Can Retrieve Array Informat
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Chapter 12: Managing Event Queues 3
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Chapter 17: Preprocessing Your 4GL
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Chapter 1: IntroductionThis section
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ConventionsConventionsThe following
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Your Support OptionsYour Support Op
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OpenROAD NamesThe rules for these n
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OpenROAD Names3. Enclosing field sc
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OpenROAD NamesThe following code ex
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VariablesThe following illustrates
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VariablesIn the first example, film
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VariablesOpenROAD checks references
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VariablesHow You Can Declare Dynami
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VariablesFor example, assume that y
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ExpressionsHowever, you cannot use
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ExpressionsThe general syntax for h
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ExpressionsCurSessionSpecifies, for
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ExpressionsString OperatorThe conca
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ExpressionsOperatorlikenot likeOper
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Expressions• You can use the esca
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ExpressionsBecause procedures can r
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System-defined FunctionsThis rule h
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System-defined FunctionsNameOperand
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System-defined FunctionsName Operan
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System-defined FunctionsNameshift(c
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System-defined FunctionsSome date f
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System-defined FunctionsThe followi
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System-defined FunctionsCount Funct
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System-defined FunctionsResult Data
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Chapter 3: Writing Scripts and Proc
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ScriptsDeclare local variables that
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ScriptsUserEventSpecifies a user ev
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ScriptsExample—Field and Menu Ite
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ProceduresOpenROAD lets you create
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ProceduresReturning from a Procedur
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ProceduresExample—Local Procedure
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Procedures4GL DataTypedatemoneyfloa
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Calling Procedures• In this call
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Calling ProceduresparameterAssigns
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How Procedure Handles Work (ProcHan
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Compiler LimitationsYou can avoid t
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How You Can Invoke FramesHow the Cu
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How You Can Invoke FramesHow You Ca
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How You Can Invoke FramesFor more i
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How You Can Invoke FramesFor exampl
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How You Can Invoke FramesIf the obj
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How You Can Invoke FramesHow You Ca
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How You Can Invoke Frames• Prompt
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How You Can Invoke FramesThe syntax
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How You Can Run Non-interactive App
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How You Can Reference ObjectsHow Yo
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How You Can Reference ObjectsHow Yo
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How You Can Reference ObjectsUse an
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Using an Object-oriented Approach t
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InheritanceClass RelationshipsYou c
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InheritanceYou can specify a user c
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InheritanceThe Terminate method is
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How You Can Create a User ClassWhen
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How You Can Create a User ClassHow
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How You Can Create a User Class3. G
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How You Can Create a User ClassTo e
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External ClassesHow You Can Use Ext
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External ClassesExample—ActiveX C
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How You Can Manipulate Objects Gene
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Overview of the OpenROAD System Cla
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How You Can Access a Database with
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How You Can Manage TransactionsHow
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How You Can Manage TransactionsDivi
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How You Can Manage TransactionsTo c
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How Programming for Multiple Sessio
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Handling Database ErrorsIn OpenROAD
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Handling Database ErrorsIf a databa
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Handling Database ErrorsFor example
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Handling Database Errorsbeginerr_no
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Arrays and Table Fields—Conceptua
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ArraysBecause an individual attribu
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ArraysDeclaring an array variable d
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ArraysThe following statement puts
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Arraysfor i = custtable.FirstRow to
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ArraysHow You Can Add Rows to an Ar
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ArraysThe inserted row is blank bec
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ArraysThe following code fragment i
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ArraysThese attributes are:AllRowsR
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ArraysAttributes used in a sort can
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ArraysThe format parameter can be a
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Table FieldsTable Fields and Associ
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Table FieldsThe following applicati
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Table FieldsThis syntax references
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Table FieldsFor example, the follow
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Table Field OperationsTable Field C
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Table Field OperationsHow You Can U
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Table Field OperationsWhen you use
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Table Field OperationsBiases can be
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Table Field OperationsThe following
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Table Field OperationsHow You Can T
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Table Field OperationsTableField Me
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Table Field OperationsFor example,
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Table Field OperationsControlling M
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CollectionsCollectionsA collection
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Collections// Open a workbook and p
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Listview_Treeview_DemoImport the De
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Listview FieldsListview FieldsA lis
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Listview FieldsextensionSpecifies a
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Listview FieldsImageIndexSpecifies
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TreeNode and Tree ClassesHeaderClic
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TreeNode and Tree ClassesMaintenanc
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Treeview FieldsHow You Can Build a
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Treeview FieldsThe second window is
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Treeview FieldsThe tree_ex2_class h
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Chapter 9: Working with Images and
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How You Can Work with ImagesThe fol
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How You Can Work with ImagesThe Col
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How You Can Work with ImagesThe Bit
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How You Can Work with Images5. Add
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How You Can Work with Text StringsD
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How You Can Work with Text StringsH
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How You Can Call 3GL ProceduresIn t
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How You Can Use Exec 4GL Statements
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How You Can Link 3GL ProceduresHow
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Sample 3GL ProceduresExec 4GL and E
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How You Can Use Data Entry Error Ha
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Chapter 12: Managing Event QueuesTh
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Event-based ProgrammingThe followin
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Event-based ProgrammingEvent TypesT
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Event-based ProgrammingField Events
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Event-based ProgrammingBecause all
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Event-based ProgrammingThe followin
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Event-based ProgrammingThe resume s
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Event-based ProgrammingNote: The da
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Communicating Between OpenROAD Fram
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How You Can Communicate with an Ext
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How You Can Communicate Between Ope
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How You Can Communicate Between Ope
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Chapter 14: Creating Dynamic Frames
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How You Can Change Field and Frame
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How You Can Create and Modify Field
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How You Can Remove Fields Dynamical
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How You Can Declare a Composite Fie
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How You Can Manipulate Data in Dyna
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How You Can Manage Operations with
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How You Can Build a Frame Dynamical
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Dynamic Statements ConsiderationsDy
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How You Can Write an AssistantNote:
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How You Can Write an AssistantFirst
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How You Can Write an AssistantBecau
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How You Can Ensure Compatibility Be
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Chapter 17: Preprocessing Your 4GL
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PreprocessorGeneral Preprocessor St
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PreprocessorThe #define StatementTh
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Error ProcessingGuidelines for Usin
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Chapter 18: Debugging Your Applicat
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How You Can Test an ApplicationHow
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How You Can Use Break ConditionsTo
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How You Can Use Break Conditions3.
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How You Can Use Break ConditionsWay
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How You Can Use Break ConditionsSet
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How You Can Use Break Conditions•
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How You Can Use Break ConditionsMet
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How You Can Log Trace InformationDa
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How You Can Monitor a Running Appli
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How You Can Monitor a Running Appli
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Page 481 and 482: How Debugging an Application WorksA
Page 483 and 484: Appendix A: SQL Syntax SummaryThis
Page 485 and 486: SQL Syntax Summarygrant all [privil
Page 487: OpenSQL Syntax SummaryOpenSQL Synta
Page 490 and 491: Operating System CommandsThe follow
Page 492 and 493: BitmapObject classThe BitmapObject
Page 494 and 495: external classAn external class def
Page 496 and 497: local variableLocal variables conta
Page 498 and 499: StringObject classThe StringObject
Page 501 and 502: Index'' ' (single quotation marks)c
Page 503 and 504: Attributesdefined • 28referencing
Page 505 and 506: using to copy data • 244using wit
Page 507 and 508: application threads • 444array di
Page 509 and 510: examining values • 473hexadecimal
Page 511 and 512: Gmoney • 51numeric list • 53pad
Page 513: Namesapplication • 21dynamic •
Page 517 and 518: concat function • 54functions •
Page 519: event chains • 323event queue •
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