SAP ABAP Problems & Solution

Initial & Not initial: In SAP we use initial & not initial  keyword for internal table value check purpose. Initial means there is no records in the internal table. Like we  have an internal table as IT_Doc. so we use initial keyword as:    if IT_doc is initial. Give message " no record found". endif.   Not initial:  At least one record is in there.   for similar internal table we can write :   If IT_Doc is not initial.   "then set logic to display the value".   endif.   

 The following table shows comparison operators for comparisons between character-like operands. The trailing blanks are respected for operands of type string. operator Meaning CO Contains Only: True, if operand1 only contains characters from operand2. It is case-sensitive and trailing blanks are respected in both operands. If operand2 is of type string and initial, then the logical expression is false, except if operand1 is also of type string and initial. In this case, the logical expression is always true. If the comparison is true, sy-fdpos contains the offset of the first character in operand1 that is not contained in operand2. If the comparison is true, sy-fdpos contains the length of operand1. CN Contains Not Only: True if a logical expression with CO is false, that is, if operand1 contains not only characters from operand2. sy-fdpos is set in the same way as for CO. If the comparison is true, sy-fdpos contains the offset...