returns an integer value indicating the output device
type stored in the long column descriptor for LongColumnName. The values returned are shown in the table below:
Value Returned
Output Device Type
0
none specified
1
system file
2
shared memory
OUTPUT_NAME
returns the output device name stored in the long
column descriptor for LongColumnName. The string returned is a 44 byte value.
LongColumnName
is the name of the column that has a long data type
(LONG BINARY or LONG VARBINARY).
Description
The long column functions
can appear in the select list or search condition of an SQL data
manipulation statement.
The long column functions are useful when you need
information about the long column descriptors, but do not want to
fetch the data.
For more information on long column data types,
see the "Data Types" chapter.
Referencing a LONG column in a LONG column function
does not cause the LONG data to be written out to the output device.
Examples
OUTPUT_DEVICE
example
Change the PartPicture output device name to NewHammer
in any row whose output device type for PartPicture is a system
file.
UPDATE PartsIllus
SET PartPicture = '> NewHammer'
WHERE OUTPUT_DEVICE(PartPicture) = 1
OUTPUT_NAME example
Select the output device name of the PartPicture column
for any row with a PartNumber of 100.
SELECT OUTPUT_NAME(PartPicture)
FROM PartsIllus
WHERE PartNumber = 100
Change all occurrences of the output device name of the PartPicture
column to NewHammer if the current output device name is Hammer.
UPDATE PartsIllus
SET PartPicture = '> NewHammer'
WHERE OUTPUT_NAME(PartPicture) = 'Hammer'
