Table of Contents
What is NLS language in Oracle?
Oracle’s National Language Support (NLS) architecture allows you to store, process, and retrieve data in native languages. It ensures that database utilities and error messages, sort order, date, time, monetary, numeric, and calendar conventions automatically adapt to the native language and locale.
What is Nls_lang used for?
It is used to let Oracle know what character set you are USING on the client side, so Oracle can do the proper conversion. You cannot change the character set of your client by using a different NLS_LANG! If you don’t set the NLS_LANG on the client it uses the NLS_LANG of the server.
How do I connect to Oracle Instant Client?
1 Connecting Instant Client or Instant Client Light to an Oracle Database. Set the TNS_ADMIN environment variable to specify the location of the tnsnames. ora file and specify a service name from that file. Set the TNS_ADMIN and the TWO_TASK environment variables to specify a service name from the tnsnames.
What is Oracle_home for Oracle client?
For the Instant Client installation type, this directory is the Oracle home directory that you specified during the installation, for example: /u01/app/oracle/product/11.2.0/client_1.
Where is Nls_lang?
Navigate to Control Panel > System and click the Advanced tab. Click Environment Variables. In System variables section, click New. In the Variable Name field, enter NLS_LANG .
How do I install Oracle Instant client 64 bit?
Go to the Oracle Database Instant Client website. In the Get Oracle Instant Client section, select Downloads. On the Oracle Instant Client Downloads page, select Instant Client for Microsoft Windows (x64). Choose Instant Client Package – Basic for your version of Oracle Database.
How do I find Oracle PATH in Windows?
Find $ORACLE_HOME on Windows tips
- From your PC, click Start | Run.
- In the Run dialog box, type “regedit” and press Return.
- The registry will now be displayed.
- Expand the folder called [HKEY_LOCAL_MACHINE]\SOFTWARE\ORACLE.
How do I check NLS settings on database instance and session level?
You can check the session, instance, and database NLS parameters by querying the following data dictionary views: NLS_SESSION_PARAMETERS shows the NLS parameters and their values for the session that is querying the view. It does not show information about the character set.
How do I change the parameters in NLS?
There are four ways to specify NLS parameters:
- As initialization parameters on the server. You can include parameters in the initialization parameter file to specify a default session NLS environment.
- As environment variables on the client.
- As ALTER SESSION parameters.
- As a SQL function parameter.
Where is Nls_lang in registry?
The NLS_LANG parameter is stored in the registry under the HKEY_LOCAL_MACHINE\SOFTWARE\ORACLE\HOMEID\NLS_LANG subkey, where ID is the unique number identifying the Oracle home.
How do I change my NLS settings?
You can alter the NLS parameters settings by: Setting NLS parameters in an ALTER SESSION statement to override the default values that are set for the session in the initialization parameter file, or that are set by the client with environment variables.
How do I know if I have 32 bit or 64 bit Oracle client?
Bring up command line prompt. Cd into the client directory and type in/run TNSPING. This will display client information and should note 64bit or 32bit.
Why do I need Oracle Instant client?
Oracle Instant Client enables development and deployment of applications that connect to Oracle Database, either on-premise or in the Cloud. The Instant Client libraries provide the necessary network connectivity and advanced data features to make full use of Oracle Database.
Where can I download the full Oracle client?
Download the client directly from Oracle’s website
- Go to Oracle Database Software Downloads .
- Under “Oracle Database 19c”, below “19.3 – Enterprise Edition”, to the far right of “Microsoft Windows x64 (64-bit)”, click See All.
- Scroll down to the appropriate Oracle client for your operating system:
- Save the file.
Where is my Oracle client installed?
If nothing is found on your the machine, then the client is not installed. Rt-Click on Computer —> Properties –> Advanced system settings –>Advanced Tab —> Environment Variables –> then check Path Option in the System variables to see Oracle client HOME dir. Option 2: Bring up a command line prompt.
How do I set NLS_Lang in Oracle Database?
Setting the NLS_LANG Environment Variable for Oracle Databases. Navigate to Control Panel > System and click the Advanced tab. Click Environment Variables. In System variables section, click New. In the Variable Name field, enter NLS_LANG .
What happens if NLS_Lang is not set on the client?
If you don’t set the NLS_LANG on the client it uses the NLS_LANG of the server. This is also NOT true! For example, if the Oracle Installer does not populate NLS_LANG , and it is not otherwise set then its value by default is A MERICAN_AMERICA.US7ASCII .
How to ensure the compatibility of NLS character sets between client and server?
About this task To ensure the compatibility of character sets between the Oracle client and the server, the value of the NLS_LANG parameter that is set in the client must match the value in the server. The entire set of NLS settings pertaining to the database is provided in the NLS_DATABASE_PARAMETERS table.
Does NLS_Lang affect character set conversion through a database link?
The NLS_LANG on the server (or client) has no influence on character set conversion through a database link. Oracle will do the conversion from the character set of the source database to the character set of the target database (or reverse).