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Answer Posted / cg
Parallel cursor is a technique to overcome loop inside loop technique in abap.
When we have two internal tables , and we have a situation where the entries from first internal table are to be dependant on the second table.
For e.g
Select matnr ernam from mara into table lt_mat where matnr = p_matnr.
Select maktx from makt into table lt_mat1 where matnr = lt_mat.
so for getting maktx we need to wirte first loop for lt_mat and then nested loop for lt_mat1 .
If we write like this , It will take more time to run the program to avoid this we use parallel cursor technique .
E.G select matnr from mara into table lt_mat where matnr = p_matnr.
Select maktx from mara into table lt_mat1 for all entries in lt_mat where matnr = lt_mat
then write loop for 1st select query only and read the second query with read table statment
Loop at lt_mat into lw_mat.
read table lt_mat1 into lw_mat1 where matnr = lw_mat.
endloop.
This is called Parallel cursor technique.
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