Category: Valentina Server

VCLIENT now Caches ServerSide Cursors. Speed Increased a lots…

Valentina CLIENT library provides not only read-only client-side cursor as do e.g. mySQL or PostgreSQL, but server-side cursor also, which can be in NoLocks, ReadOnly and ReadWrite modes.

While client-side cursor loads all result records into client computer RAM at single step, a server-side cursor loads one record only. This allows to use server-side cursors for huge SELECT results. But … if to make on such cursor a GUI grid table to display records, speed of display was not best, because each time GUI asks for other record to draw, server-side cursor have jump to VServer to load it.

Now we have cache for VCLIENT server-side cursors.

  • Speed increased dramatically.
  • VServer gets less job to do.
  • Network traffic goes down

Continue reading VCLIENT now Caches ServerSide Cursors. Speed Increased a lots…

Valentina Reports get ODBC-datasource!

Valentina Reports now support ODBC datasource!

This is great, because now Valentina Reports can work with data stored practically in any database format (MS Access, MS SQL, Oracle, Postgre SQL, mySQL, … ) and even XML.

In Valentina Studio improved datasource dialog to support ODBC.

In a Valentina ADK code, you should specify connection string in the VProject.MakeNewReport( inDataSource ), as the following: odbc://dsn=access,user=name,pass=123

Will be available in the 4.9b5 build or newer.

10 Hottest Features of Valentina Office Server

As a part of the Omegabundle 2011 for REAL Studio campaign, I have published the article 10 Hottest Features of Valentina Office Server – which just like it sounds, lists the top 10 features I think are particularly of interest to businesses which need a high performance database and business reports server at the center of their business. This covers a number of advantages you gain based on the underlying technology of Valentina DB, plus also the inclusion of the business reports engine that is also included with Valentina Office Server.

[NEW][API] Valentina.CopyCursorToNewTable()

We introduce a new utility method Valentina.CopyCursorToNewTable(), which is able to save you hundreds of lines of advanced code in your ADK-based applications. This method added into major Valentina ADKs.

You can read detailed description of this new method here.

vClient becomes thread-safe (!)

Now you should not synch vClient API calls  – vClient do it self and you are free to access and operates with vClient’s remote objects from different threads similiangly.

In particular, vStudio operates with remote connections via multiple threads  and it was a source of some glitches and unexpected errors especially with a long queries.  Now there are no more errors like “EOF reached…” or “Broken packet received…” which were result of incorrect thread synch.

SNMP and Valentina Server

There is a new feature in Valentina Server – SNMP agent.

Currently we support only get() and get_next() SNMP requests for the following oids:
sysDescr(“1.3.6.1.2.1.1.1.0” )
sysUpTime(“1.3.6.1.2.1.1.3.0” )
Not much info but it makes a possibility to monitor vServer over SNMP.

For now, SNMP facilities are available only for Windows.

You should specify SNMP port in the server ini-file (default port is 161, 0 means turn off SNMP agent):

…

[SNMP]
Port_SNMP=161;             SNMP port to listen by VServer.
;                                             0 – do not use a SNMP port.

…