File level, Record format level, Field level
The values stored in array don’t vary. In the other hand, we can store the different values in same variables at various stages.
Use this record-level keyword to immediately display a record format, without waiting for the next input or output/input operation.
CAT – Concatenate two variables or constants into one continuous string. BCAT – Truncates all trailing blanks in the first character string, one blank is inserted, then the two character strings are concatenated. TCAT – Truncates all trailing blanks in the first character string, the two character strings are concatenated.