Difference between revisions of "SAVE DATASESSION"
From Lianjapedia
Yvonne.milne (Talk | contribs) |
Yvonne.milne (Talk | contribs) |
||
| Line 6: | Line 6: | ||
==See Also== | ==See Also== | ||
| − | [[POP DATASESSION]], [[PUSH DATASESSION]], [[REPLACE()]], [[RESTORE RECORDVIEW]], [[RESTORE DATASESSION]], [[SAVE RECORDVIEW]], [[SKIP]] | + | [[DATASESSIONLEVEL()]], [[POP DATASESSION]], [[PUSH DATASESSION]], [[REPLACE()]], [[RESTORE RECORDVIEW]], [[RESTORE DATASESSION]], [[SAVE RECORDVIEW]], [[SKIP]] |
==Description== | ==Description== | ||
Latest revision as of 06:03, 19 March 2018
Contents
Purpose
Save the status of the current data session
Syntax
SAVE DATASESSION [ TO <memvar>]
See Also
DATASESSIONLEVEL(), POP DATASESSION, PUSH DATASESSION, REPLACE(), RESTORE RECORDVIEW, RESTORE DATASESSION, SAVE RECORDVIEW, SKIP
Description
The SAVE DATASESSION command is used to save the status of all open database tables. The SAVE DATASESSION command saves the following information pertaining to the current session for each open table:
- Currently selected cursor/workarea
- Cursor/Workarea number
- Database name
- Full path of table
- All index files
- Current record number
- Current index order
- Lock status
- eof() status
- bof() status
- found() status
The RESTORE DATASESSION command may be used to restore the above information. SAVE and RESTORE DATASESSION can be used with Lianja Web session variables ( _SESSION[ ] ) to maintain context between different .rsp web page requests.
Note: when SAVE DATASESSION is issued, if a database is open it remains open, but all tables are closed.
Example
save datasession // open up some new tables in a new datasession restore datasession
save datasession to statevar _session[ "statevar" ] = statevar // you can then restore the session on the next web page request like this statevar = _session[ "statevar" ] restore datasession from statevar
