Solved

sql command to list blank mysql

Posted on 2009-03-30
4
447 Views
Last Modified: 2012-05-06
The code below is  list duplicate  blank  is 197 see picture how can I write sql commmand to list all record that 'code ' is blank  

remark code is can not be null
SELECT COUNT( * ) AS `Rows` , `Code`
FROM `customer`
GROUP BY `Code`
ORDER BY `Code`
LIMIT 0 , 30

Open in new window

197.JPG
0
Comment
Question by:teera
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
4 Comments
 
LVL 15

Accepted Solution

by:
oobayly earned 200 total points
ID: 24017336
If I'm understanding correctly, you just want to list records where Code is an empty string
SELECT * FROM `customer` WHERE `Code` = '';
 
-- or if Code is counted as empty even if it contains spaces:
SELECT * FROM `customer` WHERE TRIM(`Code`) = '';

Open in new window

0
 
LVL 8

Assisted Solution

by:vinurajr
vinurajr earned 150 total points
ID: 24017397
SELECT COUNT( * ) AS `Rows` , coallsec(`Code`,'') AS `Code`
FROM `customer`
GROUP BY coallsec(`Code`,'')
ORDER BY `Code`
LIMIT 0 , 30
0
 
LVL 14

Assisted Solution

by:racek
racek earned 150 total points
ID: 24017660
SELECT * FROM `customer`
WHERE TRIM(`Code`) = ''
OR code IS NULL;
0
 
LVL 14

Expert Comment

by:racek
ID: 24017664
SELECT * FROM `customer`
WHERE TRIM(`Code`) = ''
OR Code IS NULL;
0

Featured Post

Comprehensive Backup Solutions for Microsoft

Acronis protects the complete Microsoft technology stack: Windows Server, Windows PC, laptop and Surface data; Microsoft business applications; Microsoft Hyper-V; Azure VMs; Microsoft Windows Server 2016; Microsoft Exchange 2016 and SQL Server 2016.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Password hashing is better than message digests or encryption, and you should be using it instead of message digests or encryption.  Find out why and how in this article, which supplements the original article on PHP Client Registration, Login, Logo…
Since pre-biblical times, humans have sought ways to keep secrets, and share the secrets selectively.  This article explores the ways PHP can be used to hide and encrypt information.
Explain concepts important to validation of email addresses with regular expressions. Applies to most languages/tools that uses regular expressions. Consider email address RFCs: Look at HTML5 form input element (with type=email) regex pattern: T…
The viewer will learn how to dynamically set the form action using jQuery.

751 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question