Cannot get row data after SELECT - mysql

Question

I'm a bit new to PHP as well as MySQL and I'm having an issue (I'm not even sure if this is possible) here's my issue:
I have this table here:
And I use this statement:
SELECT *
FROM (SELECT DATE_FORMAT(STR_TO_DATE(SPLIT_STRING(`date`,' ',1), '%m/%d/%Y'), '%Y-%m-%d') as month
FROM `automation-reports`
) as innerTable
WHERE MONTH(month) = 5
Which gives me:
And I want to be able to get success from that row that contains it here:
I'm not sure if this is even possible considering now data is returned for that row but like I said I'm new to MySQL so I'm not sure of the limitations.

Answer 1

Given that your date column is not a real DATETIME type, you will need to use STR_TO_DATE() but you can use a more complete date string format to return a full DATETIME object from it all at once. The correct format string is '%m/%d/%Y %r', where %r is the 12 hour time hh:mm:ss followed by AM/PM. Using that format, you can wrap the entire output in MONTH() either in SELECT or in WHERE.
SELECT
ID,
reportid,
report,
success,
STR_TO_DATE(date, '%m/%d/%Y %r') AS realdate
FROM
`automation-reports`
-- Apply MONTH() in the HAVING
HAVING MONTH(realdate) = 5
Alternatively instead of HAVING you can put the whole expression in WHERE
...
WHERE MONTH(STR_TO_DATE(date, '%m/%d/%Y %r') = 5)
But really, I would recommend changing that column to a proper DATETIME, as doing so will open up all of MySQL's date processing functions for you and allow the RDBMS to index and optimize the column. You cannot really change the column in place and have MySQL correctly parse the dates. Instead you need to add a new column, fill it, then remove the old column and rename the new (unless you want to keep both).
-- Add a DATETIME
ALTER TABLE `automation-reports` ADD realdate DATETIME;
-- And fill it with dates parsed from your string column
UPDATE `automation-reports` SET realdate = STR_TO_DATE(date, '%m/%d/%Y %r');
-- Drop the old column if you do not need both
ALTER TABLE `automation-reports` DROP date;
-- And rename the new one to the old name
ALTER TABLE `automation-reports` CHANGE realdate date DATETIME;
In this case, you can set the display format of the date after you query it, which is the better course of action than storing the date as a string in the format you want to query it.
If you are in any position to rename this table right now, I would also recommend changing the table name from automation-reports to automation_reports because MySQL does not require the backtick-quoting for the underscore name, while you'll always be needing backticks with the hyphenated name.