Mysql: How to update value in 27000 rows? Post: 302894473

8 More Discussions You Might Find Interesting

1. Web Development

Mysql question: Best way to update a column containing 8 million rows

Hi all, I was wondering if anyone knew a good/safe way to update a single column in a table that could contain upto 8 million rows... simple command like: UPDATE set blah=foo where bar=XXX; I will be running this on tables being written to and tables that have already been created. ...

2. Web Development

[MYSQL] problem with spaces in rows

Hello. I'm not sure how I can get around this, or what I am doing wrong, but I need some help. :) I want to do an select query looking like this: SELECT venue, SUM( amount ) FROM IWD WHERE venue = 'Foxy Hollow' Unfortunately I need to have spaces in the names in these fields, is...

3. Shell Programming and Scripting

Mulitple rows update by sed command

Hi All, I need to update 2 rows in my file. But i can do only one row update by sed command. Please help me how can i change mutltiple rows in single sed commana my i/p file: (example.txt) record integer (10) present_id; string (10) first_name; string (10) last_name; string...

4. UNIX and Linux Applications

Online insert MySQL rows by perl-script

Hello, Met a problem when I tried to insert rows to MySQL database from an old book that fits my learning level (MySQL and Perl for the Web, by Paul DuBois, 2001). First, under mysql console I created a database: webdb and the table: todo. Then I draft the perl-cgi script to have online page....

5. Programming

Getting Rows from a MySQL Table with max values?

I feel stupid for asking this because it seems that MYSQL code isn't working the way that I think it should work. Basically I wrote code like this: select * from `Test_DC_Trailer` HAVING max(DR_RefKey); Where the DR_RefKey is a unique numeric field that is auto iterated (like a primary key)...

6. Shell Programming and Scripting

Retrieve multiple rows from mysql and automatically create a table

Hi, i want to create a table automatically based on another table (sms_key). For example; If user create a new row with sms_keyword field: IRC then a table created automatically (with some field on it, like: name, ph_number, messages). select * from sms_key; +-------------+ |...

7. Shell Programming and Scripting

MySql split rows

Dear community, I have to split string in table and list all values. I'll skip the code and jump directly to mysql query. This is the table: category title ======= ======= 7,3 title 1 1,3 title 2 1,2,3 title 3 Now, what I need is split category into single...

8. Programming

MYSQL - trigger update on record insert or update

Right I have a MYSQL database with table1 with 3 columns, colA, colB and colC. I want to combine the data in the 3 columns into a 4th column names col_comb. Here's the SQL command that works: UPDATE table1 SET `col_comb` = CONCAT( `colA` , ' - ', `colB` , ', ', `colC` ); So now I want this...

LEARN ABOUT DEBIAN

update-otags

UPDATE-OTAGS(8) 					  System administration commands					   UPDATE-OTAGS(8)

NAME

       update-otags - update system-wide tags tables

SYNOPSIS

       update-otags

DESCRIPTION

       update-otags  runs  otags  on  the  system-wide installed OCaml files (in ocamlc -where). This makes it possible to use the tag-features of
       vi/vim and Emacs to jump to the declarations of library functions in the system-wide installed .mli files to read the documentation that is
       hopefully embedded in those files.

       To  use the system-wide tags table in Emacs, use M-x visit-tags-table <RET> /var/lib/otags/TAGS.  To load it by default, customize tags-ta-
       ble-list to contain /var/lib/otags (by using M-x customize-variable, for instance).

       For vim use :set tags=/var/lib/otags/tags or add set tags=/var/lib/otags/tags to your .vimrc.

       One would typically update the system-wide tags tables with a cron-job once per week or day.

FILES

       /var/lib/otags/{TAGS,tags}
	      System-wide tags table for Emacs and vi/vim.

       /usr/share/otags/hints
	      Directory for parsing hints. Packages that install files in non-standard syntax can install a parser hints file for  otags  in  this
	      directory, see option -parser-hints in the otags(1) manual.

BUGS

       Camlp4 (and therefore otags too) cannot parse all legal OCaml sources. Most notably, camlp4 dies on pervasives.mli (see bug #5495).  There-
       fore, none of the core library functions are tagged.

       Various files in the system-wide OCaml directory are written in the revised syntax or require other syntax extensions. In  principle  these
       files can all be properly tagged, but the dumb update-otags script tries to parse all files with the original syntax.

CREDITS

       update-otags  appeared  first in Debian Etch (see Debian bug #341939). It has been added to the contrib directory with an improved man page
       in otags 3.12.2.

AUTHOR

       Hendrik Tews <otags at askra.de>

SEE ALSO

       otags(1)

OTAGS
								   January 2012 						   UPDATE-OTAGS(8)