SQL - how to alter info of a cell in table Post: 302966956

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Special Forums UNIX and Linux Applications SQL - how to alter info of a cell in table Post 302966956 by baris35 on Thursday 18th of February 2016 08:48:20 AM

02-18-2016

Registered User

SQL - how to alter info of a cell in table

Hello,
I am newbie on mysql and trying to edit my database from terminal under linux.
What I need to do is to change the information written in a cell in table.
Let me explain what I tried:

Code:

$ mysql -u mysqluser -p
$ show databases;
$ USE catalogue;
$ show tables ;
$ select * from phonebook;

it shows something like this:

+-------------+------------+--------+
| id | friend_name | age |
+-------------+------------+--------+
| 1 | Jaxier | 18 |
| 2 | Johanna | 26 |
| 3 | Johny | 25 |
| 4 | Lacatus | 18 |
| 5 | Julia | 25 |
+-------------+------------+---------+

What I want to do is to set age of Lacatus from 18 to 58

I tried below commands:

1)

Code:

$ update phonebook set id 4 SET age 58;

gives syntax error.

2)

Code:

$  ALTER phonebook ALTER id ALTER 4 SET age 58;

I 'd appreciate if you could explain what I should run in terminal

Thanks in advance
Boris

baris35

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LEARN ABOUT DEBIAN

cvm-pgsql

cvm-pgsql(8)						      System Manager's Manual						      cvm-pgsql(8)

NAME

       cvm-pgsql - PgSQL module

SYNOPSIS

       cvm-pgsql

CREDENTIALS

       Pass phrase

DESCRIPTION

       This module queries a PgSQL database for the account name, compares the stored pass phrase with the given one using crypt(3).

CONFIGURATION VARIABLES

       The server hostname, port, database, username, password, and additional options can be controlled by setting $PGHOST, $PGPORT, $PGDATABASE,
       $PGUSER, $PGPASSWORD, and $PGOPTIONS respectively, which are parsed by the PgSQL client library.

       CVM_MYSQL_POSTQ (optional)
	      The SQL query to execute after the credentials have been validated, see cvm-sql(7).

       CVM_PGSQL_PWCMP (optional)
	      The password comparison module to use.

       CVM_PGSQL_QUERY (optional)
	      The SQL query to issue to retrieve the row containing the account information from the database.

SEE ALSO

       cvm-sql(7), cvm-mysql(8), cvm-pwfile(8), cvm-qmail(8), cvm-unix(8), cvm-vmailmgr(8),  cvm-benchclient(8),  cvm-checkpassword(8),  cvm-test-
       client(8)

	http://untroubled.org/pwcmp/pwcmp.html
	http://untroubled.org/cvm/cvm.html

																      cvm-pgsql(8)

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