Difference between revisions of "SAVE DATASESSION"

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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:
 
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 workarea
+
* Currently selected cursor/workarea
* Workarea number  
+
* Cursor/Workarea number  
* database name
+
* Database name
* full path of table  
+
* Full path of table  
* all index files
+
 
* Current record number
 
* Current record number
* Current index order
+
* Current index tag order
 
* Lock status
 
* Lock status
 
* eof() status
 
* eof() status
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* found() status
 
* found() status
  
The [[RESTORE DATASESSION]] command may be used to restore the above information. SAVE and RESTORE DATASESSION can be used with Recital Wen session variables to maintain context between different .rsp web page requests.
+
The [[RESTORE DATASESSION]] command may be used to restore the above information. SAVE and RESTORE DATASESSION can be used with Recital Web session variables ( _SESSION[ ] ) to maintain context between different .rsp web page requests.
  
 
==Example==
 
==Example==
 
<code lang="recital">
 
<code lang="recital">
procedure check_value
+
save datasession
  save datasession
+
close all
  close all
+
 
  // open up some new tables using a new datasession
+
// open up some new tables in a new datasession
  restore datasession
+
 
return
+
restore datasession
 
</code>
 
</code>
  
 +
<code lang="recital">
 +
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
 +
</code>
  
 
==Products==
 
==Products==

Latest revision as of 11:21, 24 October 2016

Purpose

Save the status of the current data session


Syntax

SAVE DATASESSION [ TO <memvar>]

See Also

@...GET, CHANGE, EDIT, ON KEY, READ, REPLACE(), RESTORE RECORDVIEW, RESTORE DATASESSION, SET CLIPPER, SET KEY, SET PCKEYS, 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
  • Current record number
  • Current index tag 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 Recital Web session variables ( _SESSION[ ] ) to maintain context between different .rsp web page requests.

Example

save datasession
close all
 
// 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

Products

Recital, Recital Web