Splitting Keywords for Posts Using PHP and MySQL
In this context, we will efficiently split keywords stored in a single column of a table and distribute them among two new tables, ensuring data integrity and optimized querying.
Background:
We have a table named 'post_tags' containing post IDs (post_id) and corresponding tags (tags_csv) separated by commas. Our goal is to create two additional tables: 'keywords' to store unique keywords and 'post_keywords' to associate keywords with posts.
Optimized Solution:
We can utilize MySQL's stored procedure to accomplish this task efficiently. The 'normalise_post_tags' procedure meticulously iterates through the post tags, extracting keywords, and inserting them into the 'keywords' table. It then associates keywords with post IDs in the 'post_keywords' table.
Implementation Details:
Data Preparation:
Stored Procedure:
Execution:
Advantages of This Approach:
Example Usage:
After populating the 'post_tags' table with data, executing the 'normalise_post_tags' procedure will create the 'keywords' and 'post_keywords' tables, splitting and associating keywords with posts in an optimized manner.
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