|
|
United States-English | |
|
|
 |
|
QUERY/iX Reference Manual: HP 3000 MPE/iX Computer Systems > Chapter 6 QUERY/iX COMMANDS (cont)
SAVE |
|
|
Creates an MPE file containing data from the IMAGE data entries referenced in the current select file.
The SAVE command creates a new MPE file containing the IMAGE data entries selected by the most recent retrieval command. This select file is saved as a self-describing (SD) file which means that its user label contains information about its contents in a standard format. Refer to Appendix E for further discussion on self-describing files. If a file with the specified name already exists, the select file is not saved and the command terminates. If you terminate the command with a CONTROL Y, the existing file is not overwritten and the select file is not saved. QUERY's internal select file consists only of record numbers. However, when you use the SAVE command, the data, from the entries that qualified when the retrieval command was executed, is copied into the file. This file can then be used by other applications. The select file and the data in the database remain unchanged by the SAVE command. The combined length of the non-compound data entries forming a compound data entry cannot exceed 2378 words. The maximum number of data items that can be contained in a compound data entry is 510. To save a multiple data set select file, the previous JOIN command cannot contain any @ signs. A data item name can belong to only one data set named in the JOIN command unless both of the following are true:
|
|||||||||||||||||||||||||||||||||||||||||||||||||||
 Printable version |
|
|
|
|
|
|||||||||||||||
|
|||||||||||||||
