Question

I’m having this odd problem where I can store an email “[e-mail]” into my DB that is either a varchar() or text() but I cannot select the row based off of the email. If I select the column via another identifier (say, a primary key called ’email_id’) then I can display the email with the period in it. I can also select any row with email column with a varchar / text that does not have a period in it, such as “test@gmailcom”.

I’ve replicated this on a test DB as well as my stage DB. This is also not a code issue because I’ve tested and replicated this when inserting directly into the DB from the query panel.

I’ve tried googling it but to no avail as well.

EDIT:

Am I using varchar() and/or text() correctly? Should it be something else? I’ve seen a few SO posts (cannot find them) stating to use VarChar.

For the record, I’m using mysql WorkBench for inserting / selecting, if that makes any difference.

EDIT 2:

Here are two records:

client_id (PK, AI, INT, UNSIGNED), email (varchar(500), not null) 

in the table of client_login.

client_id = 1, email = '[e-mail]' 

and

client_id = 2, email = 'test@gmailcom'

The following select

select * from client_login where email='[e-mail]'

returns 0 rows

select * from client_login where email='test@gmailcom'

returns 1 row

EDIT 3:

I can also do

select * from client_login where client_id=1

and it will show me the row where email = '[e-mail]', which is odd because it’s as if the period is in the row but it’s not actually a period…

Answer 1

Frankly, I don’t believe the problem is as stated.

Here’s your “problem” running in SQLFiddle, showing that it works just fine.

I think the data in the email column is not what you think it is, especially the “dot” character.
Try updating it with hand-typed data.

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To assist debugging this problem, try outputting the column value as hex using the HEX() function:

select HEX(email)

and carefully inspect the output.