10 More Discussions You Might Find Interesting
1. UNIX and Linux Applications
Good evening
I nned your help pls, In an unix server i want to connect to a remote oracle databse server by sqlplus.
I tried to find out the user/passwd and service name by env variable and all Ive got is this:
ORACLE_SID_REPCOL=SCL_REPCOL
ORACLE_SID=xmeta
ORACLE_SID_TOL=SCL_PROTOLCOL... (2 Replies)
Discussion started by: alexcol
2 Replies
2. Shell Programming and Scripting
dear all
please help me !
i need a script for exporting the selected tables of oracle database installed on CentOs.
i waiting your response.
thanks and regards (6 Replies)
Discussion started by: amirzargaran
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3. Programming
Hi,
I have 2 tables.
Table1
name map_code data_code id
aaa 2732C 3333B 10
bbb 1223F 2545v 11
ccc 12
Table2
name map_code data_code id text_description
aaa 2732C 3333B 10 description 1
bbb 1223F 2545v 11 ... (3 Replies)
Discussion started by: vanitham
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4. UNIX for Advanced & Expert Users
Hi Experts:
I have a shell script that's kicked off by cron. Inside this shell script, I need to kick off two or more oracle sql scripts to process different groups of tables. And when both sql scripts are done, I will continue in the shell script to do other things like checking processing... (3 Replies)
Discussion started by: huasheng8
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5. Shell Programming and Scripting
Hi!
I would like to do a single connection to sqlplus and execute some querys.
Actually I do for every query one connection to database
i.e
echo 'select STATUS from v$instance;
exit' > $SQL_FILE
sqlplus user/pass@sid @$SQL_FILE > $SELECT_RESULT
echo 'select VERSION from v$instance;... (6 Replies)
Discussion started by: guif
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6. Programming
I'm pretty new to the database world and I've run into a mental block of sorts. I've been unable to find the answer anywhere. Here's my problem: I have several tables and everything is as normalized as possible (as I've been lead to understand normalization.) Normalization has lead to some... (1 Reply)
Discussion started by: flakblas
1 Replies
7. Shell Programming and Scripting
Hi ,
I have two tables with same length t1 and t2, I want to cretae a new third table where i put the difference between the elements of t2 and t1,
t3= t1 - t2
t3= t1 - t2
I am new to scripts, any help please? thanks (7 Replies)
Discussion started by: Celine19
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8. Shell Programming and Scripting
Hi-
I am trying to achieve the following in a script so I can schedule it on a cron job. I am fairly new to the unix environment...
I have written a shell script that reads a flat file and loads the data into an Oracle table (Table1) via SQLLDR. This Works fine. Then, I run a nested insert... (5 Replies)
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9. Shell Programming and Scripting
Hi
I need to write a shell script that will access tables available on webpages and update a table on my webpage on a periodic basis. It will access, say for example a website that periodically update a table with certain quantities and update my table accordingly.it should have the flexibility... (0 Replies)
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10. UNIX for Dummies Questions & Answers
Hi all,
Please see my requirement and post me asap.
Spool all the tables names into a file . Take each table name and check if it is present in any of the scripts in a directory using grep -il command. The script has to loop through the tables list and take each table and find it's presence... (7 Replies)
Discussion started by: Vasundhara
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SQL(1) parallel SQL(1)
NAME
sql - execute a command on a database determined by a dburl
SYNOPSIS
sql [options] dburl [commands]
sql [options] dburl < commandfile
#!/usr/bin/sql --shebang [options] dburl
DESCRIPTION
GNU sql aims to give a simple, unified interface for accessing databases through all the different databases' command line clients. So far
the focus has been on giving a common way to specify login information (protocol, username, password, hostname, and port number), size
(database and table size), and running queries.
The database is addressed using a DBURL. If commands are left out you will get that database's interactive shell.
GNU sql is often used in combination with GNU parallel.
dburl A DBURL has the following syntax: [sql:]vendor:// [[user][:password]@][host][:port]/[database][?sqlquery]
See the section DBURL below.
commands The SQL commands to run. Each argument will have a newline appended.
Example: "SELECT * FROM foo;" "SELECT * FROM bar;"
If the arguments contain '
' or 'x0a' this will be replaced with a newline:
Example: "SELECT * FROM foo;
SELECT * FROM bar;"
If no commands are given SQL is read from the keyboard or STDIN.
Example: echo 'SELECT * FROM foo;' | sql mysql:///
--db-size
--dbsize Size of database. Show the size of the database on disk. For Oracle this requires access to read the table dba_data_files - the
user system has that.
--help
-h Print a summary of the options to GNU sql and exit.
--html HTML output. Turn on HTML tabular output.
--show-processlist
--proclist
--listproc
Show the list of running queries.
--show-databases
--showdbs
--list-databases
--listdbs
List the databases (table spaces) in the database.
--show-tables
--list-tables
--table-list
List the tables in the database.
--noheaders
--no-headers
-n Remove headers and footers and print only tuples. Bug in Oracle: it still prints number of rows found.
-p pass-through
The string following -p will be given to the database connection program as arguments. Multiple -p's will be joined with space.
Example: pass '-U' and the user name to the program:
-p "-U scott" can also be written -p -U -p scott.
-r Try 3 times. Short version of --retries 3.
--retries ntimes
Try ntimes times. If the client program returns with an error, retry the command. Default is --retries 1.
--sep string
-s string
Field separator. Use string as separator between columns.
--skip-first-line
Do not use the first line of input (used by GNU sql itself when called with --shebang).
--table-size
--tablesize
Size of tables. Show the size of the tables in the database.
--version
-V Print the version GNU sql and exit.
--shebang
-Y GNU sql can be called as a shebang (#!) command as the first line of a script. Like this:
#!/usr/bin/sql -Y mysql:///
SELECT * FROM foo;
For this to work --shebang or -Y must be set as the first option.
DBURL
A DBURL has the following syntax: [sql:]vendor:// [[user][:password]@][host][:port]/[database][?sqlquery]
To quote special characters use %-encoding specified in http://tools.ietf.org/html/rfc3986#section-2.1 (E.g. a password containing '/'
would contain '%2F').
Examples:
mysql://scott:tiger@my.example.com/mydb
sql:oracle://scott:tiger@ora.example.com/xe
postgresql://scott:tiger@pg.example.com/pgdb
pg:///
postgresqlssl://scott@pg.example.com:3333/pgdb
sql:sqlite2:////tmp/db.sqlite?SELECT * FROM foo;
sqlite3:///../db.sqlite3?SELECT%20*%20FROM%20foo;
Currently supported vendors: MySQL (mysql), MySQL with SSL (mysqls, mysqlssl), Oracle (oracle, ora), PostgreSQL (postgresql, pg, pgsql,
postgres), PostgreSQL with SSL (postgresqlssl, pgs, pgsqlssl, postgresssl, pgssl, postgresqls, pgsqls, postgress), SQLite2 (sqlite,
sqlite2), SQLite3 (sqlite3).
Aliases must start with ':' and are read from /etc/sql/aliases and ~/.sql/aliases. The user's own ~/.sql/aliases should only be readable by
the user.
Example of aliases:
:myalias1 pg://scott:tiger@pg.example.com/pgdb
:myalias2 ora://scott:tiger@ora.example.com/xe
# Short form of mysql://`whoami`:nopassword@localhost:3306/`whoami`
:myalias3 mysql:///
# Short form of mysql://`whoami`:nopassword@localhost:33333/mydb
:myalias4 mysql://:33333/mydb
# Alias for an alias
:m :myalias4
# the sortest alias possible
: sqlite2:////tmp/db.sqlite
# Including an SQL query
:query sqlite:////tmp/db.sqlite?SELECT * FROM foo;
EXAMPLES
Get an interactive prompt
The most basic use of GNU sql is to get an interactive prompt:
sql sql:oracle://scott:tiger@ora.example.com/xe
If you have setup an alias you can do:
sql :myora
Run a query
To run a query directly from the command line:
sql :myalias "SELECT * FROM foo;"
Oracle requires newlines after each statement. This can be done like this:
sql :myora "SELECT * FROM foo;" "SELECT * FROM bar;"
Or this:
sql :myora "SELECT * FROM foo;
SELECT * FROM bar;"
Copy a PostgreSQL database
To copy a PostgreSQL database use pg_dump to generate the dump and GNU sql to import it:
pg_dump pg_database | sql pg://scott:tiger@pg.example.com/pgdb
Empty all tables in a MySQL database
Using GNU parallel it is easy to empty all tables without dropping them:
sql -n mysql:/// 'show tables' | parallel sql mysql:/// DELETE FROM {};
Drop all tables in a PostgreSQL database
To drop all tables in a PostgreSQL database do:
sql -n pg:/// 'dt' | parallel --colsep '|' -r sql pg:/// DROP TABLE {2};
Run as a script
Instead of doing:
sql mysql:/// < sqlfile
you can combine the sqlfile with the DBURL to make a UNIX-script. Create a script called demosql:
#!/usr/bin/sql -Y mysql:///
SELECT * FROM foo;
Then do:
chmod +x demosql; ./demosql
Use --colsep to process multiple columns
Use GNU parallel's --colsep to separate columns:
sql -s ' ' :myalias 'SELECT * FROM foo;' | parallel --colsep ' ' do_stuff {4} {1}
Retry if the connection fails
If the access to the database fails occationally --retries can help make sure the query succeeds:
sql --retries 5 :myalias 'SELECT * FROM really_big_foo;'
Get info about the running database system
Show how big the database is:
sql --db-size :myalias
List the tables:
sql --list-tables :myalias
List the size of the tables:
sql --table-size :myalias
List the running processes:
sql --show-processlist :myalias
REPORTING BUGS
GNU sql is part of GNU parallel. Report bugs to <bug-parallel@gnu.org>.
AUTHOR
When using GNU sql for a publication please cite:
O. Tange (2011): GNU SQL - A Command Line Tool for Accessing Different Databases Using DBURLs, ;login: The USENIX Magazine, April
2011:29-32.
Copyright (C) 2008,2009,2010 Ole Tange http://ole.tange.dk
Copyright (C) 2010,2011 Ole Tange, http://ole.tange.dk and Free Software Foundation, Inc.
LICENSE
Copyright (C) 2007,2008,2009,2010,2011 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or at your option any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>.
Documentation license I
Permission is granted to copy, distribute and/or modify this documentation under the terms of the GNU Free Documentation License, Version
1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, with no Front-Cover Texts, and with no
Back-Cover Texts. A copy of the license is included in the file fdl.txt.
Documentation license II
You are free:
to Share to copy, distribute and transmit the work
to Remix to adapt the work
Under the following conditions:
Attribution
You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse
you or your use of the work).
Share Alike
If you alter, transform, or build upon this work, you may distribute the resulting work only under the same, similar or a
compatible license.
With the understanding that:
Waiver Any of the above conditions can be waived if you get permission from the copyright holder.
Public Domain
Where the work or any of its elements is in the public domain under applicable law, that status is in no way affected by the
license.
Other Rights
In no way are any of the following rights affected by the license:
o Your fair dealing or fair use rights, or other applicable copyright exceptions and limitations;
o The author's moral rights;
o Rights other persons may have either in the work itself or in how the work is used, such as publicity or privacy rights.
Notice For any reuse or distribution, you must make clear to others the license terms of this work.
A copy of the full license is included in the file as cc-by-sa.txt.
DEPENDENCIES
GNU sql uses Perl. If mysql is installed, MySQL dburls will work. If psql is installed, PostgreSQL dburls will work. If sqlite is
installed, SQLite2 dburls will work. If sqlite3 is installed, SQLite3 dburls will work. If sqlplus is installed, Oracle dburls will work.
If rlwrap is installed, GNU sql will have a command history for Oracle.
FILES
~/.sql/aliases - user's own aliases with DBURLs
/etc/sql/aliases - common aliases with DBURLs
SEE ALSO
mysql(1), psql(1), rlwrap(1), sqlite(1), sqlite3(1), sqlplus(1)
20120422 2012-04-21 SQL(1)