Updating a table using php
You can run UPDATE statements in My SQL command-line, in a GUI tool or with mysqli_query() in a PHP script.
For this article, we are going to use `employee` table mentioned below.
These features provide a lot of power and flexibility, making My SQL significantly more capable than it otherwise might be.
In this article I’ll give an overview of each feature, help you understand how to choose among them, and point out some things to watch out for. I assume My ISAM tables without support for transactions, with the following sample data: create table t1 ( a int not null primary key, b int not null, c int not null ) type=My ISAM; create table t2 ( d int not null primary key, e int not null, f int not null ) type=My ISAM; insert into t1 (a, b, c) values (1, 2, 3), (2, 4, 6), (3, 6, 9); insert into t2 (d, e, f) values (1, 1, 1), (4, 4, 4), (5, 5, 5); .
Syntax "UPDATE table_name SET column_name1=' value', column_name2=' value' WHERE column_name=' value' "; Overview In this tutorial create 3 files 1.
to allow inserting and updating exactly the desired data.
I am working my way through an update page for a simple My SQL database and have run into a couple of issues.If the software must support multiple database backends performance is critical, there’s probably no way to avoid writing different queries for each supported backend.I belive fully portable or “platform-independent” SQL is mostly a myth.I have attached the final code so others can have the solution as well. PHP (FORM FILE) // Connect to server and select database.mysql_connect("$host", "$username", "$password")or die("cannot connect"); mysql_select_db("$db_name")or die("cannot select DB"); $sql="SELECT * FROM $tbl_name WHERE date='4/5/2012'"; $result=mysql_query($sql); // Count table rows $count=mysql_num_rows($result); ? PHP (Processing Form) // Connect to server and select database.