Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Connecting to Oracle DB using sqlplus
Top Forums Shell Programming and Scripting Connecting to Oracle DB using sqlplus Post 302418556 by durden_tyler on Tuesday 4th of May 2010 05:39:50 PM
Old 05-04-2010
Actually, it is possible to connect to the Oracle database by specifying the connect descriptor from the tnsnames.ora file. But it's not a secure way of connecting since all important pieces of information (server name, port etc.) are exposed in the process list when connecting this way.

@OP - find out the net_service_name that corresponds to this connect descriptor. It may be "PHYGD1" or something else - depends on what your Oracle DBA set it to during installation, so you may want to talk to him/her.
Once it is known, you can connect as "username/password@net_service_name". Or better, set the ORACLE_SID variable to that value and connect as "username/password".

In my case, I've set my ORACLE_SID to "ora11g", which is the net_service_name in my tnsnames.ora for my local database. So I can connect as "test/test".

Have a look at the script below; it should give you some idea -

Code:
$ 
$ 
$ # First, let's check what we have in the table "T" of schema "TEST" of my local database
$ (echo "select * from t;") | sqlplus -s test/test

     X
----------
       100

$ 
$ # So, there's just one column "X" and one row and the one value in the table is 100
$ # Now show the contents of the shell script that connects to this database and
$ # fetches this value
$ 
$ cat -n fetch_value.sh
     1    #!/bin/bash
     2    
     3    #Connect to the database using sqlplus
     4    x=`sqlplus -s /nolog <<EOF
     5    connect test/test
     6    set pages 0 
     7    select x from t;
     8    exit
     9    EOF`
    10    
    11    # print the value of x fetched from the database
    12    echo "Value fetched from database, x = $x"
    13    
    14    # check if this value equals 100
    15    if [ $x == 100 ]; then
    16      echo "Yes, the value of x is 100"
    17    else
    18      echo "No, the value of x is $x"
    19      return 1
    20    fi
    21    return 0
    22    
$ 
$ # Now run the script
$ . fetch_value.sh
Value fetched from database, x =        100
Yes, the value of x is 100
$ 
$

The SQL syntax of your script looks suspicious:

Code:
...
from table(dbdev.db_inv_dtl_hdr)
...

If "dbdev.db_inv_dtl_hdr" is a regular (heap) table i.e. one that has been created using the "create table dbdev.db_inv_dtl_hdr (blah...);" syntax then your syntax should be -

Code:
...
from dbdev.db_inv_dtl_hdr
...

As a matter of fact, there is a "table()" operator in Oracle that casts a nested table to a regular table. However, that type of syntax is typically used by advanced Oracle programmers and somehow I believe that's not the case here.

HTH,
tyler_durden
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

error connecting to sqlplus

Hi, I wrote a shell script to call oracle procedure. But when i am trying to connet sqlplus with the fallowing statement It is giving me error " callproce.sh : sqlplus: not found". What could be the problem. sqlplus -s $CONNECT_STRING >$LOGFILE <<!! thank u all papachi (2 Replies)
Discussion started by: papachi
2 Replies

2. Shell Programming and Scripting

Showing errors when connecting to sqlplus in shell script

hi, I am trying to automate the compilation of procedures stored in .sql files in Unix. Is there any way in which we can sho err if there errors are raised in the compilation? I am using the following code to connect to the sqlplus sqlplus ${SQL_USER}/${SQL_PASSWORD} (5 Replies)
Discussion started by: silas.john
5 Replies

3. Shell Programming and Scripting

connecting through sqlplus

I am trying to connect to one of the oracle sever using uni through sqlplus command: sqlplus -s BOXI_ALPH_AUDITOR,Q078_audit$@Q047 But its not getting connected. I tried using some different server using same syntax its working. What differene i found is the password is having no special... (2 Replies)
Discussion started by: gander_ss
2 Replies

4. Shell Programming and Scripting

Formatting Oracle sqlplus output

a job extracts orcle data into unix as flat file. a single record breaks into two record in unix flat file. This is the case only for 6 records out of 60 lack records. (its not single record in two line. but its single record into record. ie., \n come into picture) can you tell me what... (6 Replies)
Discussion started by: Gopal_Engg
6 Replies

5. UNIX for Dummies Questions & Answers

Connecting to Oracle DB using sqlplus

Hi, I am very new to shell scripting and trying to write a simple shell script in which i am trying to achieve the following: 1. Connect to oracle database hosted on a different server 2. fire a query on the oracle db 3. store the output in a variable 4. use this variable for further logic... (1 Reply)
Discussion started by: shrutihardas
1 Replies

6. UNIX for Advanced & Expert Users

Connecting once using sqlplus and doing multiple queries

Hello everyone, It's my first week using unix and shell scripting. I tried creating a script that has a function that execute SQL query. my script looks something like this: ---------------------------------------------------- #!/bin/sh tableName="myTable" secondTable="secondTable"... (2 Replies)
Discussion started by: edlin_r
2 Replies

7. Red Hat

TNS Timeout Error when connecting to SQLPLUS through scripts only

Hi, I am facing a strange issue when connecting to SQLPLUS via a shell scripts. I am using Linux 2.6.18-274.18.1 and gbash shell. When I connect to SQLPLUS through scripts then it throws TNS Time Out error ""sometimes"" and connects successfully other times.This is only happening when... (9 Replies)
Discussion started by: aashish.sharma8
9 Replies

8. Shell Programming and Scripting

Connect to Oracle using sqlplus

I have logged into oracle using SQLPLUS. When I type any kind of query, there is only 1 answer - '2'. What is wrong with it? (1 Reply)
Discussion started by: Subhasis
1 Replies

9. Shell Programming and Scripting

Connecting sqlplus from UNIX with multiple select statement

hi, i have a requirement where i need to connect sqlplus from unix and i am able to do so by following command: cust_count=`sqlplus -s $ORACLE_USER/$ORACLE_PASS@$ORACLE_SID << EOF set pagesize 0 set feedback off set verify off ... (1 Reply)
Discussion started by: lovelysethii
1 Replies

10. Shell Programming and Scripting

Sqlplus not connecting the 2nd time in for loop

Hi, I am trying to get the rows(First step is to get the poolid's and then second step run a loop to get the output based on each pool id and third connection is to get the member id and pool id based on a different condition) where based of certain conditions and storing it in a file. I wrote the... (6 Replies)
Discussion started by: ajayakunuri
6 Replies

LEARN ABOUT REDHAT

vacuumdb

VACUUMDB(1)						  PostgreSQL Client Applications					       VACUUMDB(1)

NAME

       vacuumdb - garbage-collect and analyze a PostgreSQL database

SYNOPSIS

       vacuumdb  [  connection-options... ] [ --full | -f ] [ --verbose | -v ] [ --analyze | -z ] [ --table | -t 'table [ ( column [,...] ) ]' ] [
       dbname ]

       vacuumdb [ connection-options... ] [ --all | -a ] [ --full | -f ] [ --verbose | -v ] [ --analyze | -z ]

DESCRIPTION

       vacuumdb is a utility for cleaning a PostgreSQL database.  vacuumdb will also generate internal statistics used	by  the  PostgreSQL  query
       optimizer.

       vacuumdb  is a shell script wrapper around the backend command VACUUM [vacuum(7)] via the PostgreSQL interactive terminal psql(1). There is
       no effective difference between vacuuming databases via this or other methods.  psql must be found by the script and a database server must
       be  running at the targeted host. Also, any default settings and environment variables available to psql and the libpq front-end library do
       apply.

       vacuumdb might need to connect several times to the PostgreSQL server, asking for a  password  each  time.  It  is  convenient  to  have  a
       $HOME/.pgpass file in such cases.

OPTIONS

       vacuumdb accepts the following command-line arguments:

       [-d] dbname

       [--dbname] dbname
	      Specifies  the name of the database to be cleaned or analyzed.  If this is not specified and -a (or --all) is not used, the database
	      name is read from the environment variable PGDATABASE. If that is not set, the user name specified for the connection is used.

       -a

       --all  Vacuum all databases.

       -e

       --echo Echo the commands that vacuumdb generates and sends to the server.

       -f

       --full Perform ``full'' vacuuming.

       -q

       --quiet
	      Do not display a response.

       -t table [ (column [,...]) ]

       --table table [ (column [,...]) ]
	      Clean or analyze table only.  Column names may be specified only in conjunction with the --analyze option.

	      Tip: If you specify columns to vacuum, you probably have to escape the parentheses from the shell.

       -v

       --verbose
	      Print detailed information during processing.

       -z

       --analyze
	      Calculate statistics for use by the optimizer.

       vacuumdb also accepts the following command-line arguments for connection parameters:

       -h host

       --host host
	      Specifies the host name of the machine on which the server is running. If host begins with a slash, it is used as the directory  for
	      the Unix domain socket.

       -p port

       --port port
	      Specifies the Internet TCP/IP port or local Unix domain socket file extension on which the server is listening for connections.

       -U username

       --username username
	      User name to connect as

       -W

       --password
	      Force password prompt.

DIAGNOSTICS

       VACUUM Everything went well.

       vacuumdb: Vacuum failed.
	      Something  went wrong. vacuumdb is only a wrapper script. See VACUUM [vacuum(7)] and psql(1) for a detailed discussion of error mes-
	      sages and potential problems.

ENVIRONMENT

       PGDATABASE

       PGHOST

       PGPORT

       PGUSER Default connection parameters.

EXAMPLES

       To clean the database test:

       $ vacuumdb test

       To clean and analyze for the optimizer a database named bigdb:

       $ vacuumdb --analyze bigdb

       To clean a single table foo in a database named xyzzy, and analyze a single column bar of the table for the optimizer:

       $ vacuumdb --analyze --verbose --table 'foo(bar)' xyzzy

SEE ALSO

       VACUUM [vacuum(7)]

Application							    2002-11-22							       VACUUMDB(1)
All times are GMT -4. The time now is 12:42 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy