New to mysqli library - Multiple query problem


Posted on 16th Feb 2014 07:03 pm by admin

Greetings,

I am writing a batch program that executes 3 queries on a single page. Using mysql libraries and regular queries works just fine. I am rewriting the page to include a stored procedure. The first query gets several thousand rows from a table, the second query calls a stored procedure which returns a resultset and the third query updates the table with the results from the stored procedure. Queries 2 & 3 are inside a while loop and execute once for every record from query 1.

Here is my connection string to the database:
$connect = mysqli_connect("localhost", "username", "password","database") or
die ("The database is unavailable. Please try again later.");

Query 1 = $results = mysqli_query($connect,$query)
Query 2 = $results1 = mysqli_query($connect,$query1);
Query 3 = $results2 = mysqli_query($connect,$query2);

$query = Select * from table
$query1 = Call stored Procedure
$query2 = Update table set ...

The above fails with this error message:
Warning: mysqli_fetch_row() expects parameter 1 to be mysqli_result, boolean given in pagename on line 103

If I create 3 connection variables everything works as expected.
$connect = mysqli_connect("localhost", "username", "password","database") or
die ("The database is unavailable. Please try again later.");
$connect1 = mysqli_connect("localhost", "username", "password","database") or
die ("The database is unavailable. Please try again later.");
$connect2 = mysqli_connect("localhost", "username", "password","database") or
die ("The database is unavailable. Please try again later.");

Is there a way to accomplish what I am trying to do without creating 3 identical connections to the database?

I am a noob to this so go easy on my coding practices. This code actually processes 40+ records per second on an old Dell laptop

No comments posted yet

Your Answer:

Login to answer
205 Like 15 Dislike
Previous forums Next forums
Other forums

PHP Include w/If IE Condition Statement?
I was having a problem with Internet Exploder (big surprise, right?) displaying my drop down menus i

upload only text files
hi guys i want to upload only text like like (pdf,note pad and ofiice files) so can any one please t

php mysql script to find record
Hi,

Currently I have a simple table with 4 columns. A, B, C, D

If I want to find all

getting Vars to pass to next page.
Hello all,
I have a confusing situation on my hands, i am a member of a gaming community and we

Needing Youtube thumb nail fix.
I have a script on a site that pulls in you-tube videos,
The problem is, that the thumb nails for

Displaying returned XML in another PHP page
I have an online payment form that will return XML given if a payment is successful or declines. I

try catch error
I have been trying try catch but, I can't get it to work. The code opens a non existing file called

Create PHP table grid help, please
I have a MySQL database setup, now it's time for the table (gridview) design in php. Here's the prob

update post issues
I am trying to create an update to a post function, while the update does occur, the page routing an

why does my session end?
my connect.php starts the session just so you know
i can navigate arround my site fine except whe

Sign up to write
Sign up now if you have flare of writing..
Login   |   Register
Follow Us
Indyaspeak @ Facebook Indyaspeak @ Twitter Indyaspeak @ Pinterest RSS



Play Free Quiz and Win Cash