Solved

Question on using LOAD DATA LOCAL INFILE REPLACE statement

Posted on 2013-06-21
1
419 Views
Last Modified: 2013-06-21
if I have 100 fields in a table, and I do a LOAD DATA LOCAL INFILE REPLACE command to a MySQL db with a .csv file that only has 50 of those fields in it, will it just update the fields that are in the .csv file and leave the others alone or will it replace those entire rows, thus making the fields that are NOT in the .csv file become the default for those fields?
0
Comment
Question by:cashonly
[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
1 Comment
 
LVL 52

Accepted Solution

by:
_agx_ earned 500 total points
ID: 39266830
Yes, REPLACE means it mysql will replace the entire row.  Any columns NOT in the CSV file will have their values reset to the default.


CSV Data
1,Foo
3,Bar

Data (Before)

1, 'AA', 10, '2013-12-31 00:00:00'
2, 'BB', 20, '2013-12-31 00:00:00'
3, 'CC', 30, '2013-12-31 00:00:00'

Data (After)
1, 'Foo', 0, ''
2, 'BB', 20, '2013-12-31 00:00:00'
3, 'Bar', 0, ''

* Column 3 has a DEFAULT of 0
0

Featured Post

Announcing the Most Valuable Experts of 2016

MVEs are more concerned with the satisfaction of those they help than with the considerable points they can earn. They are the types of people you feel privileged to call colleagues. Join us in honoring this amazing group of Experts.

Question has a verified solution.

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

Suggested Solutions

Popularity Can Be Measured Sometimes we deal with questions of popularity, and we need a way to collect opinions from our clients.  This article shows a simple teaching example of how we might elect a favorite color by letting our clients vote for …
Introduction This article is intended for those who are new to PHP error handling (https://www.experts-exchange.com/articles/11769/And-by-the-way-I-am-New-to-PHP.html).  It addresses one of the most common problems that plague beginning PHP develop…
Finds all prime numbers in a range requested and places them in a public primes() array. I've demostrated a template size of 30 (2 * 3 * 5) but larger templates can be built such 210  (2 * 3 * 5 * 7) or 2310  (2 * 3 * 5 * 7 * 11). The larger templa…
This video shows how to use Hyena, from SystemTools Software, to update 100 user accounts from an external text file. View in 1080p for best video quality.

739 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