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Full Discussion: Change detection in MySQL.
Top Forums Web Development MySQL DevZone RSS Change detection in MySQL. Post 302325389 by amit_27 on Monday 15th of June 2009 04:53:06 AM
Old 06-15-2009
Thanks. I got the information from INFORMATION_SCHEMA COLUMNS.

While retrieving the data from the result of query I faced following problem.

mysql> select select COLUMN_NAME, DATA_TYPE, IS_NULLABLE, CHARACTER_MAXIMUM_LENGTH, NUMERIC_PRECISION from INFORMATION_SCHEMA.COLUMNS where table_name='account');

In coding I run the query using mysql_real_query() whose result is stored in

pResult = mysql_store_result(pMySQLDB);
fields = mysql_fetch_field(pResult);
my_ulonglong noOfRows = mysql_num_rows(pResult);
row = mysql_fetch_row(pResult);

it will not return any rows.
But in fields I get select COLUMN_NAME, DATA_TYPE, CHARACTER_MAXIMUM_LENGTH, NUMERIC_PRECISION that I don't want.
I want the value of these field like "amit, "MY_VAR_STRING", '10', '0'.
I want to store these data inot another variable however not getting it.

Can you please tell me how do I fetch the data what I want from the query output or I am doing anything wrong?
 

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Session::Store::MySQL(3)				User Contributed Perl Documentation				  Session::Store::MySQL(3)

NAME
Apache::Session::Store::MySQL - Store persistent data in a MySQL database SYNOPSIS
use Apache::Session::Store::MySQL; my $store = new Apache::Session::Store::MySQL; $store->insert($ref); $store->update($ref); $store->materialize($ref); $store->remove($ref); DESCRIPTION
Apache::Session::Store::MySQL fulfills the storage interface of Apache::Session. Session data is stored in a MySQL database. SCHEMA
To use this module, you will need at least these columns in a table called 'sessions', or another table name if you provide the TableName argument: id char(32) # or however long your session IDs are. a_session text To create this schema, you can execute this command using the mysql program: CREATE TABLE sessions ( id char(32) not null primary key, a_session text ); If you use some other command, ensure that there is a unique index on the table's id column. CONFIGURATION
The module must know what datasource, username, and password to use when connecting to the database. These values can be set using the options hash (see Apache::Session documentation). The options are: DataSource UserName Password TableName Handle Example: tie %hash, 'Apache::Session::MySQL', $id, { DataSource => 'dbi:mysql:database', UserName => 'database_user', Password => 'K00l', TableName => 'sessions' }; Instead, you may pass in an already-opened DBI handle to your database. tie %hash, 'Apache::Session::MySQL', $id, { Handle => $dbh }; AUTHOR
This modules was written by Jeffrey William Baker <jwbaker@acm.org> SEE ALSO
Apache::Session perl v5.12.1 2007-09-28 Session::Store::MySQL(3)
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