<div>
First, query all records and then insert them.
</div>


First, query all records and then insert them.

<div>
project-&gt;snapshot-&gt;layer <br />
<br />

<pre><code id="code-20-42221371-1">@NewID = ??? find new id somehow ???;

insert into projects
select @NewID, col1, col2, col3,... from project where ID=@OldID;

insert into snapshot
select @NewID, col1, col2, col3,... from snapshot where PrjID=@OldID;</code></pre>
<br />
for the 3rd table, we need to know your db diagram / relations / column names...
</div>


project->snapshot->layer



@NewID = ??? find new id somehow ???;

insert into projects
select @NewID, col1, col2, col3,... from project where ID=@OldID;

insert into snapshot
select @NewID, col1, col2, col3,... from snapshot where PrjID=@OldID;


for the 3rd table, we need to know your db diagram / relations / column names...

<div>
Brilliant HainKurt - thanks very much for the detail. Will study and learn. <br />
Thanks also Mukesh
</div>


Brilliant HainKurt - thanks very much for the detail. Will study and learn.
Thanks also Mukesh

<div>
<div class="content wysiwyg-content">
A MySQL &nbsp;database has three &nbsp;levels of subtable.<br />
project-&gt;snapshot-&gt;layer &nbsp;<br />
<br />
Need to duplicate a project record along with all subrecords from snapshot and layer<br />
a project can have many snapshots, a snapshot can have many layers <br />
<br />
Would prefer to do this in PHP but stored procedure is OK<br />
All comments and advice welcome and appreciated
</div>
</div>


A MySQL  database has three  levels of subtable.
project->snapshot->layer  

Need to duplicate a project record along with all subrecords from snapshot and layer
a project can have many snapshots, a snapshot can have many layers 

Would prefer to do this in PHP but stored procedure is OK
All comments and advice welcome and appreciated

MySQL Best way to duplicate rows from tables and subtables

Databases are organized collections of data, most commonly accessed through management systems including schemas, tables, queries and processes that allow users to enter and manipulate the information or utilize it in other fashions, such as with web applications or for reporting purposes.

Databases

PHP is a widely-used server-side scripting language especially suited for web development, powering tens of millions of sites from Facebook to personal WordPress blogs. PHP is often paired with the MySQL relational database, but includes support for most other mainstream databases. By utilizing different Server APIs, PHP can work on many different web servers as a server-side scripting language.

MySQL is an open source, relational database management system that runs as a server providing multi-user access to a number of databases. Acquired by Oracle in 2009, it is frequently used in combination with PHP installations, powering most of the WordPress installations.