Focus on data

There are two Focus on Data process statements:

NFOCUS: Focus applies to the new file
OFOCUS: Focus applies to the old file

These two statements select (or "focus on") rows or columns of data to be compared. In other words, only these rows or columns are considered when performing the comparison (or search) process and all other rows or columns are ignored. Up to 254 "focus" statements can be entered for each file.

Note:

NFOCUS and OFOCUS statements are mutually exclusive to NEXCLUDE and OEXCLUDE statements if using the same operand keyword (ROWS or COLS).
Do not use the NFOCUS or OFOCUS process statement if the Y2DTONLY process statement has been specified.

Compare Types: FILE (ROWS option only) and LINE


>>-+-NFOCUS-+--+-ROWS-+--start_position--:--end_position-------><
   '-OFOCUS-'  '-COLS-'

start_position: If ROWS operand used, the first row (record) to be selected for the comparison. If COLS operand used, the first column to be selected for the comparison.
end_position: If ROWS operand used, the last row (record) to be selected for the comparison. If COLS operand used, the last column to be selected for the comparison. (Must be separated from the start_position by a colon.)

Example: Description
NFOCUS ROWS 28:90: Selects rows (records) 28 through 90 on the new file.
OFOCUS ROWS 150:165: Selects rows (records) 150 through 165 on the old file.
OFOCUS COLS 10:18: Selects columns 10 through 18 on the old file.