ABAP_to_the_Future

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8Business Object Processing Framework (BOPF)Figure 8.20 Creating an ActionActions usually need one or more input parameters, which means that you haveto define a parameter structure. In Parameter Structure, choose a name for thatstructure and then double-click that name to create the structure via SE11. Then,click Complete. The result is shown in Figure 8.21.Figure 8.21 Completed Action Definition in Transaction BOB326
Using BOPF to Write a DYNPRO-Style Program 8.2Coding the ActionNow that the action has been created, you have to code it. The first step is to createa public method for howling at the m oon. This will have a single importingparameter that corresponds to the stru cture you defined when creating youraction in BOPF—namely, ZSA_HOWL_AT_THE_MOON. (You could have a totally differentsignature if you wanted, because the BOPF-generated action class can adaptthe generated input structure to the sign ature of the model. This would be thecase if you were hooking up an already existing model class to BOPF.)Because methods of a model class can do literally anything that can be imagined(in real actions, you update the current state of the object, or save it to the database,or send an instruction to an exte rnal system), you will just have a methodwith a few lines of code that sends a message to the SAP GUI (Listing 8.15) in yourmodel class and will concentrate on how to call this from BOPF.METHOD howl_at_the_moon.DO is_howl_request-no_of_howls TIMES.MESSAGE 'Ooooooooooooooooooooooooo' TYPE 'I'.ENDDO.ENDMETHOD. "Howl at the MoonListing 8.15 Coding the Howl at the Moon Action in the Model ClassWith that piece of programming genius out of the way, it’s time to turn to codingthe generated action class. Th e generated class implements the /BOBF/IF_FRW_ACTION interface, which gives you three methods:왘 RETRIEVE DEFAULT PARAMThis method sends out a list of what input fields are needed to call the action.It’s remotely possible that a calling application might need the structure of theaction input parameter for some reason. If the parameter structure keepschanging dramatically (e.g., if in th e BOPF definition the DDIC type of theinput parameter structure is changed), then the calling program might want tofill the parameter fields dynamically so that the calling program does not haveto change when the BOPF object changes the parameter. That isn’t very likely,though. This method is optional.왘 PREPAREAn action can be performed on more thanone object, and this method lets youlimit the number of objects the acti on is performed upon. The difference327
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Paul HardyABAP ®to the Futurewww.a
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To my mother, Mary, who would have
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Notes on UsageThis e-book is protec
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ContentsForeword ..................
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Contents2.9 Unit Testing ..........
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Contents7.3.2 Class Invariants ....
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Contents11.1.2 Downloading ABAP2XLS
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Contents15.3 Bottom-Up Development
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Forewordtoolsets your company shoul
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1It may be hard for an egg to turn
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IntroductionSAP introduced ABAP Obj
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Structure of the Booktechnologies d
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Structure of the Book(BOPF), which
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The Example ApplicationBaron Franke
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It’s best not to stare at the sun
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Installation 1.1very basics of how
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Installation 1.1Figure 1.2 Installi
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Installation 1.1Figure 1.4 Eclipse
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Features 1.2Figure 1.6 ABAP in Ecli
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Features 1.2Figure 1.8 Searching fo
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Features 1.2oper to such an extent
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Features 1.2to forget the exact nam
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Features 1.2METHODS: main.ENDCLASS.
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Features 1.2The definition and impl
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Features 1.2ld_description1 = 'BONK
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Features 1.2Figure 1.16 Extracting
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Features 1.2ld_result = ld_use_this
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Features 1.2Automatically creating
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Testing and Troubleshooting 1.3Figu
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Testing and Troubleshooting 1.3does
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Testing and Troubleshooting 1.3by r
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Testing and Troubleshooting 1.3Figu
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Customization Options with User-Def
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Summary 1.5design UML diagrams insi
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It's a beautiful thing, the Destruc
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Database Access 2.1Figure 2.1 Micro
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Database Access 2.1lower the sanity
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Database Access 2.1account of secon
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Database Access 2.1efficient way to
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Declaring and Creating Variables 2.
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String Processing 2.3LD_RESULT = |M
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Calling Functions 2.4However, now y
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Calling Functions 2.4sometimes the
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Conditional Logic 2.52.5.1 Using Fu
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Conditional Logic 2.5If the functio
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Conditional Logic 2.5l_day = 'Tuesd
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Internal Tables 2.6WHEN cs_monster_
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Internal Tables 2.6unique hashed ke
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Internal Tables 2.6In Section 2.2.2
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Internal Tables 2.6a traditional RE
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Internal Tables 2.6monster_name TYP
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Internal Tables 2.6This saves you a
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Internal Tables 2.6you want to modi
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Internal Tables 2.6at a time; someh
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Internal Tables 2.6DATA( lt_average
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Object-Oriented Programming 2.7In 7
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Search Helps 2.8to the end of the d
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Unit Testing 2.9So, you can imagine
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Unit Testing 2.9IF id_chemcial_type
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Cross-Program Communication 2.10The
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Code without tests is bad code. It
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Eliminating Dependencies 3.13.1 Eli
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Eliminating Dependencies 3.1WHEN 'N
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Implementing Mock Objects 3.2mo_use
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Implementing Mock Objects 3.2rd_ans
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Writing and Implementing Unit Tests
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Automating the Test Process 3.4supp
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Automating the Test Process 3.4whil
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Automating the Test Process 3.4INSE
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Automating the Test Process 3.4ld_c
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Automating the Test Process 3.4cl_a
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Behavior-Driven Development 3.5you
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Summary 3.6Whatever you want to cal
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If builders built buildings the way
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Automatic Run of Unit Tests 4.14.1
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Mass Checks 4.2program that was wri
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Mass Checks 4.2Figure 4.5 ATC Confi
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Mass Checks 4.2In the Description f
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Mass Checks 4.2objects and set a va
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Mass Checks 4.2Next, go into SE80 t
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Mass Checks 4.2CASE statement, like
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Mass Checks 4.2On the next screen (
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Recent Code Inspector Enhancements
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Debugging is twice as hard as writi
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Script Tab Overview 5.1Figure 5.1 D
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Script Tab Overview 5.1rally, then
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Coding the SCRIPT Method 5.25.2 Cod
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Coding the SCRIPT Method 5.2For exa
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Coding the SCRIPT Method 5.2call an
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Coding the INIT and END Methods 5.3
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Summary 5.4script, you can tell the
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6The Enhancement Framework and New
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There is no exception to the rule t
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Types of Exception Classes 7.1which
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Types of Exception Classes 7.1dump
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Types of Exception Classes 7.1decla
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Designing Exception Classes 7.2mayb
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Designing Exception Classes 7.2an e
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Designing Exception Classes 7.2rela
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Designing Exception Classes 7.2* Co
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Designing Exception Classes 7.2Tech
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Designing Exception Classes 7.2Mean
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9BRFplusFigure 9.17 Adding a Decisi
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9BRFplusis also a lot of text on ea
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9BRFplusAt the bottom of the screen
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9BRFplusanother explanation could b
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9BRFplusFigure 9.26 Adding Formulas
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9BRFplushave a Check button at the
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9BRFplusIn case you don’t think y
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9BRFplusTo find the appropriate per
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9BRFplusues from the spreadsheet th
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9BRFplusFigure 9.34 Overlap Check S
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9BRFplusFigure 9.37 Simulation: 3 o
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9BRFplustask that is about to be cr
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9BRFplusFigure 9.42 Generated BRFpl
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9BRFplus9.6.2 Application ExitsWhen
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9BRFpluscase feature (which require
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Computer science departments have a
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Getting Started 10.12. Calling the
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Getting Started 10.1The first probl
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Getting Started 10.1FROM ztvc_monst
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Designing a Report Interface 10.2Th
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Designing a Report Interface 10.2Fi
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Designing a Report Interface 10.2Se
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Designing a Report Interface 10.2me
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Designing a Report Interface 10.2if
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Designing a Report Interface 10.2
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Designing a Report Interface 10.2In
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Designing a Report Interface 10.2ME
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Designing a Report Interface 10.2IF
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Designing a Report Interface 10.2Fi
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Designing a Report Interface 10.2fo
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Adding Custom Command Icons Program
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Editing Data 10.4id_title= 'Monster
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Editing Data 10.4SAP class CL_SALV_
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Editing Data 10.4it_user_commands =
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Editing Data 10.4table containing t
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Handling Large Internal Tables with
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Q. How do you identify an extrovert
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The Basics 11.1nity can benefit. Th
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The Basics 11.1Figure 11.5 Workshee
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The Basics 11.1Adding Desired Attri
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The Basics 11.1ld_pathld_fullpathTY
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Enhancing Custom Reports with ABAP2
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Tips and Tricks 11.3"44300 is the s
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Tips and Tricks 11.3However, it wor
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Summary 11.4As an example, in Secti
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12Web Dynpro ABAP and Floorplan Man
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What if you could find brand new wo
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Architecture 13.11. Use SAP Gateway
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Prerequisites 13.2to SAP PI, direct
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Backend Tasks: Creating the Model U
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Frontend Tasks: Creating the View a
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Adding Elements with OpenUI5 13.5Du
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Adding Elements with OpenUI5 13.5Fi
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Adding Elements with OpenUI5 13.5}"
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Importing SAPUI5 Applications to SA
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Summary 13.8Synactive must have bee
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The worst part of holding the memor
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The Promises of Shared Memory 14.11
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Creating and Using Shared Memory Ob
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Updating the Database and Shared Me
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Troubleshooting 14.4send data from
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Troubleshooting 14.4* updated, so w
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Troubleshooting 14.4memory root obj
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When you innovate, you’ve got to
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Introduction to Code Pushdown 15.11
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Top-Down Development 15.2CDS ViewAM
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Top-Down Development 15.2Creating a
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Top-Down Development 15.2You always
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Top-Down Development 15.2To recap,
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Top-Down Development 15.2SELECT *FR
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Top-Down Development 15.2{ vbak.zz_
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Top-Down Development 15.2SummaryIn
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Top-Down Development 15.2USING zt_m
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Top-Down Development 15.2-- declare
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Bottom-Up Development 15.315.3 Bott
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Bottom-Up Development 15.3Figure 15
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Locating Code that Can Be Pushed Do
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Other Modifications to ABAP for SAP
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Summary 15.6SP 12. So SAP clearly h
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16ConclusionThey want everything to
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AImproving Code ReadabilityAs Rober
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The What vs. the How A.2When it com
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BMaking Programs FlexibleOne of the
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Making Programs FlexibleBExampleThe
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Making Programs FlexibleBThis appro
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Making Programs FlexibleBBoth examp
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IndexAABAP 7.02, 90, 96, 98, 103, 1
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IndexEclipse (Cont.)connect to back
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IndexSSALV, 408add custom icons, 44
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IndexXXML, 460, 463XSDBOOL, 105ZZ c
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About Us and Our ProgramThe website
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TrademarksThe common names, trade n
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