Populating a New Database Table from and Old Table with ColdFusion
by Ron Kurtus
Supposed you have created a new database table, and you want to populate it with data from another table. You can use the Macromedia ColdFusion <CFLOOP> tag and the SQL INSERT function to perform that task.
Steps to take are:
- Create new table
- Create CF page with Query, Loop and Insert
- Test application
This lesson will answer those questions.
Create new table
First, you need to create the new table in your database and enter the names, types and sizes of its columns or fields. The names do not have to be the same as the fields in the first database, but the types and sizes should be.
Create CF page
Then, create a ColdFusion page where you query, loop and insert your data.
Query old table
Query the old table for its data. This table may be in the same database or in a different one.
<CFQUERY NAME="first" DATASOURCE="xxx">
Loop and insert
Loop over this query and insert the records or rows into the new table.
<CFQUERY NAME="second" DATASOURCE="yyy">
INSERT INTO New_TableName(
Remember to add the single quotation marks ( ' ) for the text data items. Also, note that the names from the first table do not necessarily have be the same as what you enter in the second table.
Upload the page and run the application. You may get error message for data mismatches or such. Make the appropriate adjustments.
You can also use this method to add or update data in you new table from the original.
To populate new database table with data from another table, you can use the <CFLOOP> tag and the SQL INSERT function to perform that task.
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Populating a New Database Table from an Old Table