HP 3000 Manuals HP 3000 Manuals
Appendix A HP ALLBASE/4GL Logic Command Names
This appendix provides a brief description of each of the HP ALLBASE/4GL
logic commands.
BACKGRND Executes an HP ALLBASE/4GL process as a background
task.
CALC Calculates the result of an arithmetic expression
with two or more operands.
CALL Provides dynamic loading of functions written in the
C programming language.
CHECK Matches a value against an HP ALLBASE/4GL table of
values or a series of fields in a file record.
CLEAR Clears part or all of a screen or the scratch pad.
DATE Performs a variety of calculations on date fields.
DECISION Executes an HP ALLBASE/4GL decision table.
DEFINE Creates an abbreviation for substitution in the
current logic block.
DISPLAY Clears or displays a line of data in the screen's
scroll area.
DM IMAGE Performs various operations specific to HP
TurboIMAGE/iX databases.
ENTER Specifies the next logic block step to be executed.
EXIT Terminates processing of the current logic block.
EXTERNAL Transfers program execution to an external program in
a language other than HP ALLBASE/4GL.
FIELD Changes the behavior or attributes of a field on an
application screen.
FILE Performs various file operations on an HP ALLBASE/4GL
data file.
IF Performs one or more actions as a result of testing
one or two conditions.
IFLOOP Performs a conditional test repeatedly.
KEYS Displays a set of function keys on an application
screen.
LENGTH Calculates the number of characters in a field.
LINK Concatenates a number of fields.
LINKLOOP Concatenates a series of consecutive fields.
MATH Calculates a two operand arithmetic expression.
MATHLOOP Repeatedly calculates a two operand arithmetic
expression.
MESSAGE Displays a message in the message area of the screen.
MODE Specifies the way files are to be accessed in the
current process.
MOVE Copies the contents of one field to another field.
MOVELOOP Copies consecutive fields to other consecutive
fields.
NOTE Inserts a comment into a logic block.
OFF Sets a switch OFF.
ON Sets a switch ON.
PRINT Prints a report line on the current report.
PROCEED Executes a process logic block.
REPORT Executes a report.
SCREEN Displays a screen.
SCROLL Displays a line of data in the screen's scroll area.
SELECT Executes one of a series of commands depending on the
value of *PASS.
SERIES Executes a range of steps in the current logic block.
SHOW Displays the contents of a field or range of fields
on the current screen.
SQL Executes the commands in an SQL logic block.
TIE Specifies the next field to process on the current
screen.
TOP Returns to the first step of the current logic block.
TRANSACT Defines groups of logically related file operations
that make up one transaction.
UPDATE Writes all changed data file buffers to file.
VALIDATE Checks for the presence or absence of data in a file
field.
VISIT Executes an HP ALLBASE/4GL function logic block.
WINDOW Displays a window in the window area of the current
screen.
ZIP Performs no operation.