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1. Ubuntu
Hi
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3. Ubuntu
i want to install Neye program in ubunto 10.10
and deal with SQLite database
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thanks (1 Reply)
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4. Ubuntu
Hi
I have dual operating system i.e Win XP and KUBUNTU. Now my windows XP is corrupted and i want to reinstall Win XP. So i just want to know Shall i have to reinstall Linux also or i can only reinstall win xp without affecting linux installation.
Thanks
Sarbjit (3 Replies)
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Hi all,
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cPU : Powerpc,POWER3
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10. UNIX for Dummies Questions & Answers
hey
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SQLITE_POPEN(3) SQLITE_POPEN(3)
sqlite_popen - Opens a persistent handle to an SQLite database and create the database if it does not exist
SYNOPSIS
resource sqlite_popen (string $filename, [int $mode = 0666], [string &$error_message])
DESCRIPTION
This function behaves identically to sqlite_open(3) except that is uses the persistent resource mechanism of PHP. For information about
the meaning of the parameters, read the sqlite_open(3) manual page.
sqlite_popen(3) will first check to see if a persistent handle has already been opened for the given $filename. If it finds one, it returns
that handle to your script, otherwise it opens a fresh handle to the database.
The benefit of this approach is that you don't incur the performance cost of re-reading the database and index schema on each page hit
served by persistent web server SAPI's (any SAPI except for regular CGI or CLI).
Note
If you use persistent handles and have the database updated by a background process (perhaps via a crontab), and that process re-
creates the database by overwriting it (either by unlinking and rebuilding, or moving the updated version to replace the current
version), you may experience undefined behaviour when a persistent handle on the old version of the database is recycled.
To avoid this situation, have your background processes open the same database file and perform their updates in a transaction.
PARAMETERS
o $filename
- The filename of the SQLite database. If the file does not exist, SQLite will attempt to create it. PHP must have write permis-
sions to the file if data is inserted, the database schema is modified or to create the database if it does not exist.
o $mode
- The mode of the file. Intended to be used to open the database in read-only mode. Presently, this parameter is ignored by the
sqlite library. The default value for mode is the octal value 0666 and this is the recommended value.
o $error_message
- Passed by reference and is set to hold a descriptive error message explaining why the database could not be opened if there was
an error.
RETURN VALUES
Returns a resource (database handle) on success, FALSE on error.
SEE ALSO
sqlite_open(3), sqlite_close(3), sqlite_factory(3).
PHP Documentation Group SQLITE_POPEN(3)