When developing a new program, make sure that you remove unwanted fields or views that are declared inside the DEFINE DATA section. Since when a program is compiled, it picks these fields also in the buffer memory during compilation and resources would be wasted and efficiency is affected.

Do not use unwanted READs inside a FIND statement.

Never use an UPDATE inside a physical READ.

Avoid using COMPUTE statements while performing straight forward addition, subtraction functions, rather use the appropriate ADD, SUB statements for it.