Difference between revisions of "SAVE DATASESSION"

Revision as of 05:53, 24 June 2015

Purpose

Save the status of the current data session

Syntax

SAVE DATASESSION [ TO <memvar>]

See Also

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