abap debugging techniques.ppt

7/30/2019 ABAP Debugging Techniques.ppt

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ABAP Debugging Techniques

Presented by : Rafeeq Sheikh


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Table of Contents

Need for Debugging .

Debugging requirement. .....

Initial Set Up .....

Debugging Types. .

Debugging Screen. .....

Single Dimensional structure ..

Two Dimensional structure. .

System Variables. .

Break Point. .

Watch Point. .

Termination of Batch Job .

Background Job Overview .

Dump Analysis .

Error List .

Runtime Analysis .


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Need for Debugging


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Need for Debugging

Problem Type Tool

Starting point for analyzing a

crashed program/ background job

System Log (SM21)

Runtime Error ABAP Dump Analysis (ST22)

Unexpected Program behavior ABAP Runtime Analysis (SE30)

Finding specific statement,

function, method

ABAP Runtime Analysis (SE30)

Performance problem ABAP Runtime Analysis (SE30)

SQL Trace (ST05)

Screen Processing Screen Trace (ST20)

Detailed error analysis source

code level

ABAP Debugger


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Debugging Requirement


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Debugging requirement

Report.

Function Module

User Exit

Screens Module Pool Program.

Standards Programs.

Background Jobs.


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Debugging - Report


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USAGE

Change field values at Runtime, of variable or ITab field

for manipulating the logic flow.

Skip record counts within a loop and arrive at particular

iteration of concern.

To directly pinpoint to a field value of Internal Table.

Check for proper Data retrieval and Logic flow.


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Initial Set Up

Identify relevant variable to locate appropriate point in codeto start debugging.

Menu Bar Utilities Breakpoint Set.

Enter /h in command line. (Optional wherein needto debug incorrect value field on first screen)

Using hard code in ABAP program BREAK-POINT

Execute.

Control switches to Debugging Mode.


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Single Step (F5): Control passes through eachexecutable statement.

Execute (F6): Control overruns through each

Subroutine, without passingthrough code within.

Return (F7): Control skips current subroutine.

Run (F8): Control runs to next debugging point or

reaches the end result of the program.

Debugging Types


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Debugging Screen


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Variable/ Field: Contains data. Structure: Consists Multiple fields.

Work Area: Current line of ITab, contains multiple

fields.

Process

FIELD button -> enter name in Col Field names data

displayed in Field Contents.

Field Contents can be modified using Change button.

Single Dimensional structure


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Internal Table: Contents of database table retrievedby ABAP code (selected fields).

Process

Tables button enter name in Internal table sectionOR double click on ITab name Table

data displayed below.

Change field contents:

double click on any ITab field leadsto Single Field Contents screen useChange button for Runtime changes

Two Dimensional structure


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SY-SUBRC: Successful execution of previous statementSystem variable providing fruitful information, about

confirmation of retrieval statement.

sy-subrc = 0 successful retrieval of data

sy-subrc 0 unsuccessful retrieval of data

SY-TABIX: Current line number of internal table.

SY-DBCNT: Total No of lines processed.

System Variables


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Break Point is set within a loop with 10,000 iterations.

Interested to know about processing for 900th iteration.

Executing F8 until then is time consuming, instead use

Break Point feature.

Features:

Skip record counts within a loop.

Specify the record number for processing to be checked.

Break Point


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To directly pinpoint a field of Internal Table havingparticular value.

Can be placed for any field of Internal table.

Features:

Comparison Operator.

Comparison Field Value.

Logical Operator.

Local/ Global data.

Watch Point


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Debugging Background Job


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Termination of Batch Job

Transaction for Batch Job: SM37

Execute for given User.

Identify particular Job from the displayed list of Jobs.

Check for Job Log.

For the erroneous Message Text note the MessageNumber and Class.

Identify the actual message text using SE91.


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Background Job Overview


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Dump Analysis

Transaction : ST22

Execute for given User/ Program/ Date.

Provides list of errors for given selection.

Selection of particular error gives the Runtime ErrorDescription.


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List of Errors for given User


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Runtime Error

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