Home/ Questions/Q 6830155
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-26T22:35:04+00:00

I am reading contents of a file and adding it as a row in

  • 0

I am reading contents of a file and adding it as a row in mysql db. The column in which the file contens will be added is a TEXT column.

There are multiple files that will be uploaded and it’s contents are extracted in a cronjob and added to the TEXT column. One row per file.

My files sometimes are empty. In that case, a row with no content is created.

Now, I need to retrieve this content in another cronjob and perform some activities. I would like to filter and retrieve only those rows where content exists. Like using where clause with LENGTH(TRIM(ContentCol)) > 0. Since it is a TEXT column, I am unable to use LENGTH & TRIM functions.

Also when I use LENGTH function, it show different length.. I could see 5, 1 etc. though there is no value in the row-cell.

How can I perform this criteria?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Well I use the function BIT_LENGTH(string); but only with short text data.

    This function only return the length of bits, I evaluate this like 

    BIT_LENGTH(string) > 0
    • 0