hello -
Is it possible to connect to a database at the command line to an Oracle instance whilst logged in on the unix box i.e. not using a script
Sure, allways has been. Unless I am missing something obvious, you simply use sqlplus. Some things that you may need some help with though are as follows:
1. Find out the database instance your want to connect to; you DBA can tell you.
2. Source the Oracle environment file, which is typically kept in /usr/local/bin called oraenv (for sh, ksh, etc.)
Code:
. /usr/local/bin/oraenv
3. When prompted for database, enter the name from step 1.
If oraenv doesn't prompt you for a path, you are finished; run sqlplus.
If oraenv does prompt you for a path, make sure your database name is correct and, if it is, you can either ask the DBA for the path for ORACLE_HOME or you can have a look in a file called "oratab". This is located typically in /var/opt/oracle. Alternatively, it may be located in /etc.
Good luck.
Thomas
P.S. Probably can't answer any Cytrix questions, I used 4 times probably. I may still have a client on my PC so if there isn't anyone else who can answer, I may be able to dig up an answer.
Hi,
While i am trying to connect to Oracle database from Perl using DBI module,am getting the error as follows :
Can't load '/usr/local/fuseperl-modules/lib/i586-linux-thread-multi/auto/DBD/Oracle/Oracle.so' for module DBD::Oracle: libwtc9.so: cannot open shared object file: No such file... (4 Replies)
if;
sql="select username from dba_users where username = '$FromUser';"
check_FromUser=`ExecSql "$sql"`
I want to connect to Oracle database & check the users in the database, store the value in check_FromUser.
First how to connect to Oracle database from the shell script ?
Appreciate your... (4 Replies)
I am trying to develop a script that can connect to a DB2 database mainframe and Query the database and display the results. I've been researching, but I have yet to find a definitive solution where I can enter in the Mainframe DB2 address db2:// and query the database and return the results. If... (2 Replies)
Hi,
Am running my client in Windows and the database (IBM DB2) is in AIX machine. if I open my client its not connecting to the database at first time and failing in a particular SQL Query. But if I close the client and open again then its connecting and the query is also working fine. Don't... (0 Replies)
Hi,
I want to write a shell script which connects to a Database, executes a set of SQLs and displays a message for every SQL that was run whether any records have been returned or not?
Can anyone help me in this regard?
Appreciate your help and concern.
Thanks,
Dave (1 Reply)
Hi,
My requirement is to generate a single text output which fetches data from two different databases. I have two different sqrs to generate text file1(data from db1) and file2(data from db2). can I execute both the sqrs from a single shell script? If yes, pls let me know how to connect to db2... (1 Reply)
Hai
i want to connect to oracle database from user input and create a view.
${ECHO} "Debut Creating View"
${ECHO} "Please Enter the User Name:"
read user_name
${ECHO} "Please Enter the Connection String:"
read con_string
${ECHO} "Please Enter the Password:"
read pwd... (3 Replies)
Hi all,
In my concern they gave a task to me do cran job like
To write a shell script for
To connect a database
it should execute a query
it should save the output of the query
after getting the output it should send a mail to you inbox for every one hour
I can able to... (8 Replies)
Hi experts.
I have different database and schema and their passwords in one file.
In Unix : I want to create the script that connect the sqlplus and execute the select query one by one schema with different database.
Ex: password File Format
databse schemaname password
DB1 name1 ... (1 Reply)
Hi guys, long time no typing :D
I have problems when I try to connect to Oracle database from SQL Developer which is located on my Windows box.
Server is running Solaris 11/11 and Oracle 11 enterprise. I can log in locally with sys account to database, start it up and shut it down but when I... (2 Replies)
Discussion started by: solaris_user
2 Replies
LEARN ABOUT PHP
oci_pconnect
OCI_PCONNECT(3)OCI_PCONNECT(3)oci_pconnect - Connect to an Oracle database using a persistent connectionSYNOPSIS
resource oci_pconnect (string $username, string $password, [string $connection_string], [string $character_set], [int $session_mode])
DESCRIPTION
Creates a persistent connection to an Oracle server and logs on.
Persistent connections are cached and re-used between requests, resulting in reduced overhead on each page load; a typical PHP application
will have a single persistent connection open against an Oracle server per Apache child process (or PHP FastCGI/CGI process). See the Per-
sistent Database Connections section for more information.
PARAMETERS
o $username
- The Oracle user name.
o $password
- The password for $username.
o $connection_string
-Contains the Oracle instance to connect to. It can be an Easy Connect string, or a Connect Name from the tnsnames.ora file, or
the name of a local Oracle instance. If not specified, PHP uses environment variables such as TWO_TASK (on Linux) or LOCAL (on
Windows) and ORACLE_SID to determine the Oracle instance to connect to. To use the Easy Connect naming method, PHP must be linked
with Oracle 10 g or greater Client libraries. The Easy Connect string for Oracle 10 g is of the form: [//]host_name[:port][/ser-
vice_name]. From Oracle 11 g, the syntax is: [//]host_name[:port][/service_name][:server_type][/instance_name]. Service names can
be found by running the Oracle utility lsnrctl status on the database server machine. The tnsnames.ora file can be in the Oracle
Net search path, which includes $ORACLE_HOME/network/admin and /etc. Alternatively set TNS_ADMIN so that $TNS_ADMIN/tnsnames.ora
is read. Make sure the web daemon has read access to the file.
o $character_set
-Determines the character set used by the Oracle Client libraries. The character set does not need to match the character set used
by the database. If it doesn't match, Oracle will do its best to convert data to and from the database character set. Depending on
the character sets this may not give usable results. Conversion also adds some time overhead. If not specified, the Oracle Client
libraries determine a character set from the NLS_LANG environment variable. Passing this parameter can reduce the time taken to
connect.
o $session_mode
-This parameter is available since version PHP 5 (PECL OCI8 1.1) and accepts the following values: OCI_DEFAULT, OCI_SYSOPER and
OCI_SYSDBA. If either OCI_SYSOPER or OCI_SYSDBA were specified, this function will try to establish privileged connection using
external credentials. Privileged connections are disabled by default. To enable them you need to set oci8.privileged_connect to
On. PHP 5.3 (PECL OCI8 1.3.4) introduced the OCI_CRED_EXT mode value. This tells Oracle to use External or OS authentication,
which must be configured in the database. The OCI_CRED_EXT flag can only be used with username of "/" and a empty password.
oci8.privileged_connect may be On or Off. OCI_CRED_EXT may be combined with the OCI_SYSOPER or OCI_SYSDBA modes. OCI_CRED_EXT is
not supported on Windows for security reasons.
RETURN VALUES
Returns a connection identifier or FALSE on error.
EXAMPLES
Example #1
Basic oci_pconnect(3) Example using Easy Connect syntax
<?php
// Connects to the XE service (i.e. database) on the "localhost" machine
$conn = oci_pconnect('hr', 'welcome', 'localhost/XE');
if (!$conn) {
$e = oci_error();
trigger_error(htmlentities($e['message'], ENT_QUOTES), E_USER_ERROR);
}
$stid = oci_parse($conn, 'SELECT * FROM employees');
oci_execute($stid);
echo "<table border='1'>
";
while ($row = oci_fetch_array($stid, OCI_ASSOC+OCI_RETURN_NULLS)) {
echo "<tr>
";
foreach ($row as $item) {
echo " <td>" . ($item !== null ? htmlentities($item, ENT_QUOTES) : " ") . "</td>
";
}
echo "</tr>
";
}
echo "</table>
";
?>
See oci_connect(3) for further examples of parameter usage.
NOTES
Note
Starting with PHP 5.1.2 and PECL OCI8 1.1, the lifetime and maximum number of persistent Oracle connections per PHP process can be
tuned by setting the following configuration values: oci8.persistent_timeout, oci8.ping_interval and oci8.max_persistent.
SEE ALSO oci_connect(3), oci_new_connect(3).
PHP Documentation Group OCI_PCONNECT(3)