Variable Declaration Rules in SAP-ABAP

Dear ABAPers this post explains what rules need to be followed when creating variables in SAP ABAP. The rules we need to follow are, 

• Variables must be declared in the program.

• Variables can be upto 30 characters.
• Key words of ABAP/4 shall not be used as variables.

• The declaration process consists of telling the system what type of data     will be stored in the temporary location associated with the   variable.

• These variables persist only during the execution of the program,   and the data they contain is lost when execution is complete.

• Variables can be declared at any point in a program. However it is   preferable to define at the begining of  a program.

• Begin variable with a letter and then a combination of letters &   numbers. Hyphen or Dash (-) is allowed but do not use it.

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Posted in: SAP Basics, Variable Declaration