For character columns (CHAR, VARCHAR), you can specify from and to strings
(from_string and to_string)
up to 100 characters long. However, when you are dealing with long
strings, you may find that you cannot fit the whole CHANGE command
(including other parameters) on the command line. To overcome the
problem, do one of the following to display an Extended Command Entry
pop-up panel (see Extended
Command Entry pop-up panel for the CHANGE command):
Enter CX (for Change Extended)
Enter the CHANGE primary command (or one of its abbreviations,
such as C) with no parameters
Note: If you have previously
used the CHANGE or FIND commands in the current FM/Db2 editor session,
to display the Extended Command Entry pop-up panel in this way, you
will need to first use the RESET command before entering the CHANGE
command (or one of its abbreviations) without any parameters. Alternatively,
enter CX.
The Extended Command Entry pop-up panel contains five lines (each
50 characters long) that you use to enter all the CHANGE command parameters
(but not the actual keyword CHANGE or any of its abbreviations).
FM/Db2 treats the five lines on the pop-up panel as contiguous, allowing
you to specify long from and to strings, the Db2® column number and optionally
any other parameters, using up to 250 characters in total.
Note: You
can continue a string (or any other parameter) from the last position
on one line of the pop-up panel to the first position of the next
line. However, this does not mean that you need to completely fill
a line before using the next line. For example, you can specify the from string
on the first of the five lines, the to string on the next line,
and the Db2® column number (specified
as #n) on the next line. If you do not use
all of a line, FM/Db2 treats the unused part of the line as a single
space.
Extended
Command Entry pop-up panel for the CHANGE command shows the Extended
Command Entry pop-up panel for the CHANGE command. In this example,
any previous occurrences of the string dichlorodiphenyltrichloroethane in Db2® columns 4 or 7, between the
labels .abc and .def, are to be changed to the string trinitrophenylmethylnitramine for
non-excluded rows only. Figure 1. Extended
Command Entry pop-up panel for the CHANGE command
Process Options Utilities Help
──────────────────────────────────────────────────────────────────────────────
FM/Db2 (DFG2) Table Edit 1 of 42
TABLE FMNUSER.EMP Format TABL
┌───────────────────── Extended Command Entry ──────────────────────┐ DATE
│ │
│ Complete typing the CHANGE command and press Enter. │
│ │
0 │ CHANGE ===> 'It is wise to apply the oil of refined politeness │
0 │ ===> to the mechanisms of friendship.' │ch who y
0 │ ===> 'In prosperity our friends know us; in adversity w │lain you
0 │ ===> e know our friends.' #5 │or them
0 │ ===> │ng you n
0 │ │horizes
0 │ │rare, le
0 │ F1=Help F2=Split F3=Exit F9=Swap F12=Cancel │y new fr
0 └───────────────────────────────────────────────────────────────────┘ 9/1980
000009 000110 You can make more friends in two months by becoming interested in
000010 000120 Never explain--your friends do not need it and your enemies will
000011 000130 Do not protect yourself by a fence, but rather by your friends.
000012 000140 Nothing changes your opinion of a friend so surely as success - y
Command ===> c Scroll PAGE
F1=Help F2=Zoom F3=Exit F4=CRetriev F5=RFind F6=RChange
F7=Up F8=Down F9=Swap F10=Left F11=Right F12=Cancel