10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi Linux Experts.
I have a requirement where i need to update the thousands of table definitions to extend the column length and character set therefore i am looking for some sort of linux script which i can use to update the length and chacterset.
I have two files
In first file i have 7... (1 Reply)
Discussion started by: Black-Linux
1 Replies
2. Shell Programming and Scripting
Hi all,
I'm loading data in database through sqlldr.
I want to know the total record count
And the number of records inserted in table..
what is the logic to achieve that.
Thanks (5 Replies)
Discussion started by: Pratiksha Mehra
5 Replies
3. Shell Programming and Scripting
Hello all,
Please help me for a script that compares two files and reads only those records that are to be inserted and updated.
File1:
c_id name place contact_no
1 abc xyz 34567
10 efg uvw 82725
6 hjk wth 01823
2 iuy ... (4 Replies)
Discussion started by: T@ni@
4 Replies
4. Shell Programming and Scripting
if
> wc -l data.txt
> 100
(meaning there are 100 rows)
i want to assgn 100 as n so that if i do
>echo n
it would give me
100
Thanks (5 Replies)
Discussion started by: johnkim0806
5 Replies
5. Shell Programming and Scripting
I have a file with the following format, i need to change de field9 each 3 rows to renumber field9 with gpo1, gpo2, gpo3.
I need to use awk
Original file
field1 field2 field3 field4 field5 field6 field7 field8 gpo3
field1 field2 field3 field4 field5 ... (3 Replies)
Discussion started by: robonet
3 Replies
6. Shell Programming and Scripting
Hi experts a have a very large file and I need to add two columns: the first one numbering the incidence of records and the another with the total count
The input file:
21 2341 A
21 2341 A
21 2341 A
21 2341 C
21 2341 C
21 2341 C
21 2341 C
21 4567 A
21 4567 A
21 4567 C
... (6 Replies)
Discussion started by: juelillo
6 Replies
7. UNIX for Dummies Questions & Answers
hi,
i am a new user in unix..and we have unix db2. i want to capture the no. of rows updated by a update db2 sql statement and redirect into a log file.
I've seen db2 -m...but not sure how the syntax should be. The update sql that I'm going to run is from a file...
Can you please share... (1 Reply)
Discussion started by: j_rymbei
1 Replies
8. Shell Programming and Scripting
Hello,
I have to compare two files file1 and file2, retrieve the number of lines modified (added, deleted or modified) in file2. Output must be like:
File2:
Added Deleted Changed Total
------ ------- -------- -----
2 1 1 4
Somebody... (2 Replies)
Discussion started by: nmattam
2 Replies
9. Shell Programming and Scripting
hi,
I have a log file , which is appending with current data
i need the extarct which is updated from last 30 minutes
the format of the date is Jun 18, 2008 8:59:18 AM
how can i subtract 30 mins from the current date
thanks
Tarun. (5 Replies)
Discussion started by: tarundeepdhawan
5 Replies
10. Shell Programming and Scripting
Hi all, i am doing a perl script to read from a db. I am able to retrieve the rows, but i am unable to return the number of rows selected. i tried
$selectedrows = $sth->numrows; i got the error msg:
Can't locate object method "numrows" via package "DBI::st"
i changed it to $selectedrows =... (7 Replies)
Discussion started by: new2ss
7 Replies
PDO.EXEC(3) 1 PDO.EXEC(3)
PDO
::exec - Execute an SQL statement and return the number of affected rows
SYNOPSIS
public int PDO::exec (string $statement)
DESCRIPTION
PDO.exec(3) executes an SQL statement in a single function call, returning the number of rows affected by the statement.
PDO.exec(3) does not return results from a SELECT statement. For a SELECT statement that you only need to issue once during your program,
consider issuing PDO.query(3). For a statement that you need to issue multiple times, prepare a PDOStatement object with PDO.prepare(3) and
issue the statement with PDOStatement.execute(3).
PARAMETERS
o $statement
- The SQL statement to prepare and execute. Data inside the query should be properly escaped.
RETURN VALUES
PDO.exec(3) returns the number of rows that were modified or deleted by the SQL statement you issued. If no rows were affected, PDO.exec(3)
returns 0.
Warning
This function may return Boolean FALSE, but may also return a non-Boolean value which evaluates to FALSE. Please read the section on
Booleans for more information. Use the === operator for testing the return value of this function.
The following example incorrectly relies on the return value of PDO.exec(3), wherein a statement that affected 0 rows results in a call to
die(3):
<?php
$db->exec() or die(print_r($db->errorInfo(), true));
?>
EXAMPLES
Example #1
Issuing a DELETE statement
Count the number of rows deleted by a DELETE statement with no WHERE clause.
<?php
$dbh = new PDO('odbc:sample', 'db2inst1', 'ibmdb2');
/* Delete all rows from the FRUIT table */
$count = $dbh->exec("DELETE FROM fruit WHERE colour = 'red'");
/* Return number of rows that were deleted */
print("Deleted $count rows.
");
?>
The above example will output:
Deleted 1 rows.
SEE ALSO
PDO.prepare(3), PDO.query(3), PDOStatement.execute(3).
PHP Documentation Group PDO.EXEC(3)