03-06-2012
Script to count the dataflow in a table in oracle database
I need to write a unix shell script to connect to oracle database and retrieve data from a table, the script should count the total number of rows till date in that table
number of rows which are getting filled per hour on current day and the peak hour of the current day
number of rows which are getting filled per day and per week
This is to be done for multiple tables
This count helps me in calculating the dataflow per hour,day,week
Thanks in advance
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LEARN ABOUT PHP
db2_rollback
DB2_ROLLBACK(3) 1 DB2_ROLLBACK(3)
db2_rollback - Rolls back a transaction
SYNOPSIS
bool db2_rollback (resource $connection)
DESCRIPTION
Rolls back an in-progress transaction on the specified connection resource and begins a new transaction. PHP applications normally default
to AUTOCOMMIT mode, so db2_rollback(3) normally has no effect unless AUTOCOMMIT has been turned off for the connection resource.
PARAMETERS
o $connection
- A valid database connection resource variable as returned from db2_connect(3) or db2_pconnect(3).
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
Example #1
Rolling back a DELETE statement
In the following example, we count the number of rows in a table, turn off AUTOCOMMIT mode on a database connection, delete all of
the rows in the table and return the count of 0 to prove that the rows have been removed. We then issue db2_rollback(3) and return
the updated count of rows in the table to show that the number is the same as before we issued the DELETE statement. The return to
the original state of the table demonstrates that the roll back of the transaction succeeded.
<?php
$conn = db2_connect($database, $user, $password);
if ($conn) {
$stmt = db2_exec($conn, "SELECT count(*) FROM animals");
$res = db2_fetch_array( $stmt );
echo $res[0] . "
";
// Turn AUTOCOMMIT off
db2_autocommit($conn, DB2_AUTOCOMMIT_OFF);
// Delete all rows from ANIMALS
db2_exec($conn, "DELETE FROM animals");
$stmt = db2_exec($conn, "SELECT count(*) FROM animals");
$res = db2_fetch_array( $stmt );
echo $res[0] . "
";
// Roll back the DELETE statement
db2_rollback( $conn );
$stmt = db2_exec( $conn, "SELECT count(*) FROM animals" );
$res = db2_fetch_array( $stmt );
echo $res[0] . "
";
db2_close($conn);
}
?>
The above example will output:
7
0
7
SEE ALSO
db2_autocommit(3), db2_commit(3).
PHP Documentation Group DB2_ROLLBACK(3)