PRL control statement verbs
The first word of every PRL statement is a verb or a condition (IF, FOR, WHERE) with a verb in the expression. This section describes PRL verbs in alphabetical order. Each verb is discussed in a separate section that includes a description of the verb, its uses, syntax, and a coding example.
PRL verb | Description | See this topic |
|---|---|---|
COMPUTE | Calculates a mathematical expression | |
DEFINE | Assigns the data characteristics of a variable | |
DETAIL | Creates a tabular summary at each control break | |
DIAGNOSE | Creates a system snap dump and diagnostic report | |
END | Terminates the execution of a PRL program | |
FOR and NEXT | Repeats a series of instructions in a loop | |
GOTO | Branches to another location of a PRL program identified by a label | |
IF and THEN | Tests conditions and makes a program branch according to the outcome | |
LET | Assigns a length to variable 1 from the length of variable 2 | |
ORDER BY | Sorts data | |
Prints a report | ||
REPORT | Creates a report from the data processed by PRL statements | |
REVESRSE | REVERSE instruction sets value of the variable in reversed characters order | |
SCAN | Reads a variable and performs an editing function on the data | |
SELECT | Selects records from CMRDETL, CTGDETL, and CMRSTATS data sets | |
SET | Assigns a value to a variable | |
SUMMARY | Creates a tabular summary of the first preceding variable in the USING statement | |
TRIM | TRIM instruction removes specified characters from the beginning, ending or both ends of the variable | |
USING | Designates column headings and the data shown in a report based upon record fields | |
WHERE | Qualifies record selection based on whether a condition is met |
This section also contains the following topics: