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Process Help EXTNDF - extend a file with data entered in fixed format |
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Process Name |
Menu Path |
Link to Command Table |
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EXTNDF |
Command line only |
Introduction
Extends an existing file with data entered in fixed format.
How to use
The data may come either from the keyboard, or from a character system file external to the database (maximum 80 characters wide).
The data format may come either from the file description, entered when the Data Definition was originally set up, or from the format line.
Files, Fields and Parameters
Input Files
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Name |
Description |
I/O Status |
Required |
Type |
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IN |
File to be extended. |
Input |
Yes |
Undefined |
Output Files
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Name |
I/O Status |
Required |
Type |
Description |
Notes
After entering the relevant information in the command dialog the user is prompted for the following information:
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>SYSFILE> |
Enter the external file name (max 56 characters); Leave blank if there is no external file name. |
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>FORMAT> |
Enter the FORTRAN format in brackets. Max 80 characters, with character data in A4 units (e.g. 3A4, A2) and E or F format for numbers (e.g. 3F12.0). Integers as F format (e.g. F6.0). If format is already in the FILE DESCRIPTION, then enter <return>. |
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>DATA> |
Data lines, in defined format; ! terminates. |
Incorrect data records (i.e. those not matching the specified format statement) will be ignored, with a message to the display.
Records may not start with the character !. This is because the ! symbol acts as the end-of-data character. However macro files, where the command starts with !, may be read if a blank is inserted prior to the ! symbol. The format for macro (or any other files being read into a standard character format database file) is (20A4).
Example
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!EXTNDF
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&IN(SAMPLES.1) |
Error and Warning Messages
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Message |
Description |
Solution |
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>>> SYSTEM FILE DOES NOT EXIST <<< |
The named file does not exist. Fatal; the process is exited. |
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>>> FORMAT CONVERSION ERROR <<< (listing of record) |
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ERR 80 <<< ( 0) IN FMTDCD |
The given record did not match the format entered. Warning; the record is ignored.
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ERR 94 <<< (charposn) IN INPFMT ERROR IN FORMAT AT CHARACTER POSITION nnn FORMAT >>> (listing of format) |
The format was illegal. Only A, E, F, G and X descriptors are allowed. Fatal; the process is exited. |
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