Oracle Instant Client Downloads for Microsoft Windows 32-bit

See the Instant Client Home Page for more information about Instant Client.

The installation instructions are at the foot of the page.

Client-server version interoperability is detailed in Doc ID 207303.1 . For example, Oracle Call Interface 18.3 can connect to Oracle Database 11.2 or later. Some tools may have other restrictions.

Permanent links to the latest packages are: Basic , Basic Light , SQL*Plus , Tools , SDK , JDBC Supplement , ODBC

Basic Package All files required to run OCI, OCCI, and JDBC-OCI applications

(79,327,654 bytes) (cksum - 3297456827)

The 21c Basic package requires the Microsoft Visual Studio 2017 Redistributable.

Basic Light Package Smaller version of the Basic package, with only English error messages and Unicode, ASCII, and Western European character set support

(36,468,800 bytes) (cksum - 3804937693)

The 21c Basic package requires the Microsoft Visual Studio 2017 Redistributable .

SQL*Plus Package The SQL*Plus command line tool for SQL and PL/SQL queries

(952,360) (cksum - 15681474)

Tools Package Includes Data Pump, SQL*Loader and Workload Replay Client

(1,025,164 bytes) (cksum - 4032173340)

SDK Package Additional header files and an example makefile for developing Oracle applications with Instant Client

(1,285,313 bytes) (cksum - 3051068381)

JDBC Supplement Package Additional support for Internationalization under JDBC

(1,584,661 bytes) (cksum - 466515620)

ODBC Package Additional libraries for enabling ODBC applications

(965,437 bytes) (cksum - 1905833528)

Precompiler Package Precompiler Downloads Additional files for Pro*C and Pro*COBOL Basic Package All files required to run OCI, OCCI, and JDBC-OCI applications

(75,852,650 bytes) (cksum - 2789894465)

The 19c Basic package requires the Microsoft Visual Studio 2017 Redistributable.

Basic Light Package Smaller version of the Basic package, with only English error messages and Unicode, ASCII, and Western European character set support

(35,593,064 bytes) (cksum - 253799869)

The 19c Basic package requires the Microsoft Visual Studio 2017 Redistributable .

SQL*Plus Package The SQL*Plus command line tool for SQL and PL/SQL queries

(887,770 bytes) (cksum - 210270485)

Tools Package Includes Data Pump, SQL*Loader and Workload Replay Client

(1,095,290 bytes) (cksum - 859734949)

SDK Package Additional header files and an example makefile for developing Oracle applications with Instant Client

(1,516,952 bytes) (cksum - 3946180083)

JDBC Supplement Package Additional support for Internationalization under JDBC

(1,583,369 bytes) (cksum - 3756110156)

ODBC Package Additional libraries for enabling ODBC applications

(788,891 bytes) (cksum - 3299702937)

Precompiler Package Precompiler Downloads Additional files for Pro*C and Pro*COBOL Basic Package All files required to run OCI, OCCI, and JDBC:OCI applications

(74,140,828 bytes) (cksum - 297900794)

Basic Light Package Smaller version of the Basic package, with only English error messages and Unicode, ASCII, and Western European character set support

(35,549,981 bytes) (cksum - 1491364376)

SQL*Plus Package The SQL*Plus command line tool for SQL and PL/SQL queries

(884,077 bytes) (cksum - 3590737221)

Tools Package Includes Data Pump, SQL*Loader and Workload Replay Client

(950,904 bytes) (cksum - 3310954301)

SDK Package Additional header files and an example makefile for developing Oracle applications with Instant Client

(1,502,950 bytes) (cksum - 330016902)

JDBC Supplement Package Additional support for Internationalization under JDBC

(1,580,553 bytes) (cksum - 4009011077)

ODBC Package Additional libraries for enabling ODBC applications

(748,991 bytes) (cksum - 2563637832)

Precompiler Package Precompiler Downloads Additional files for Pro*C and Pro*COBOL Basic Package All files required to run OCI, OCCI, and JDBC:OCI applications

(71,881,824 bytes) (cksum - 3943816961)

The 12.2 Basic package requires the Microsoft Visual Studio 2013 Redistributable.

Basic Light Package Smaller version of the Basic package, with only English error messages and Unicode, ASCII, and Western European character set support

(33,952,164 bytes) (cksum - 3100478757)

The 12.2 Basic Light package requires the Microsoft Visual Studio 2013 Redistributable.

SQL*Plus Package The SQL*Plus command line tool for SQL and PL/SQL queries

(869,596 bytes) (cksum - 3936688114)

Tools Package Includes Data Pump, SQL*Loader and Workload Replay Client

(953,250 bytes) (cksum - 3613837252)

SDK Package Additional header files and an example makefile for developing Oracle applications with Instant Client

(1,477,702 bytes) (cksum - 4177145789)

JDBC Supplement Package Additional support for Internationalization under JDBC

(1,575,019 bytes) (cksum - 3111443322)

ODBC Package Additional libraries for enabling ODBC applications - Updated 9/22/2017

(730,779 bytes) (cksum - 2384457566)

Precompiler Package Precompiler Downloads Additional files for Pro*C and Pro*COBOL Instant Client Package - Basic All files required to run OCI, OCCI, and JDBC-OCI applications

(67,410,370 bytes) (cksum - 530881682)

The 12.1 Basic package requires the Microsoft Visual Studio 2010 Redistributable.

Instant Client Package - Basic Lite Smaller version of the Basic, with only English error messages and Unicode, ASCII, and Western European character set support

(33,851,306 bytes) (cksum - 3971707995)

The 12.1 Basic Light package requires the Microsoft Visual Studio 2010 Redistributable.

Instant Client Package - JDBC Supplement Additional support for XA, Internationalization, and RowSet operations under JDBC

(1,573,642 bytes) (cksum - 2509633653)

Instant Client Package - SQL*Plus Additional libraries and executable for running SQL*Plus with Instant Client

(805,513 bytes) (cksum - 2478532846)

Instant Client Package - SDK Additional header files and an example makefile for developing Oracle applications with Instant Client

(1,951,770 bytes) (cksum - 722480528)

Instant Client Package - ODBC Additional libraries for enabling ODBC applications

(505,668 bytes) (cksum - 41700632)

Instant Client Package - WRC Workload Replay Client used to replay workload for RAT's DB Replay Feature

(15,225 bytes) (cksum - 2411353204)

Precompiler Package Precompiler Downloads Additional files for "proc" binary and related files to precompile a Pro*C application and demo Instant Client Package - Basic All files required to run OCI, OCCI, and JDBC-OCI applications

(51,477,933 bytes)

Instant Client Package - Basic Light Smaller version of the Basic, with only English error messages and Unicode, ASCII, and Western European character set support

(20,258,449 bytes)

Instant Client Package - JDBC Supplement Additional support for XA, Internationalization, and RowSet operations under JDBC

(1,565,746 bytes)

Instant Client Package - SQL*Plus Additional libraries and executable for running SQL*Plus with Instant Client

(757,034 bytes)

Instant Client Package - SDK Additional header files and an example makefile for developing Oracle applications with Instant Client

(1,114,946 bytes)

Instant Client Package - ODBC Additional libraries for enabling ODBC applications

(740,921 bytes)

Instant Client Package - WRC Workload Replay Client used to replay workload for RAT's DB Replay Feature

(12,962 bytes)

Precompiler Package Precompiler Downloads Additional files for "proc" binary and related files to precompile a Pro*C application and demo Instant Client Package - Basic All files required to run OCI, OCCI, and JDBC-OCI applications

(46,734,555 bytes)

Instant Client Package - Basic Light Smaller version of the Basic, with only English error messages and Unicode, ASCII, and Western European character set support

(17,667,999 bytes)

Instant Client Package - JDBC Supplement Additional support for XA, Internationalization, and RowSet operations under JDBC

(1,562,261 bytes)

Instant Client Package - SQL*Plus Additional libraries and executable for running SQL*Plus with Instant Client

(789,617 bytes)

Instant Client Package - SDK Additional header files and an example makefile for developing Oracle applications with Instant Client

(1,068,348 bytes)

Instant Client Package - ODBC Additional libraries for enabling ODBC applications

(728,899 bytes)

Instant Client Package - WRC Workload Replay Client used to replay workload for RAT's DB Replay Feature

(6,009 bytes)

Precompiler Package Precompiler Downloads Additional files for "proc" binary and related files to precompile a Pro*C application and demo Instant Client Package - Basic All files required to run OCI, OCCI, and JDBC-OCI applications

(34,846,661 bytes)

Instant Client Package - Basic Light Smaller version of the Basic, with only English error messages and Unicode, ASCII, and Western European character set support

(10,670,287 bytes)

Instant Client Package - JDBC Supplement Additional support for XA, Internationalization, and RowSet operations under JDBC

(1,474,417 bytes)

Instant Client Package - SQL*Plus Additional libraries and executable for running SQL*Plus with Instant Client

(729,651 bytes)

Instant Client Package - SDK Additional header files and an example makefile for developing Oracle applications with Instant Client

(875,897 bytes)

Instant Client Package - ODBC Additional libraries for enabling ODBC applications

(727,190 bytes)

Instant Client Package - Basic All files required to run OCI, OCCI, and JDBC-OCI applications

(31,926,105 bytes)

Instant Client Package - JDBC Supplement Additional support for XA, Internationalization, and RowSet operations under JDBC

(4,637,410 bytes)

Instant Client Package - SQL*Plus Additional libraries and executable for running SQL*Plus with Instant Client

(269,139 bytes)

Instant Client Package - SDK Additional header files and an example makefile for developing Oracle applications with Instant Client

(765,019 bytes)

Instant Client Package - ODBC Additional libraries for enabling ODBC applications

(666,571 bytes)

See the Instant Client Home Page for more information about Instant Client packages.

Client-server version interoperability is detailed in Doc ID 207303.1 . For example, Oracle Call Interface 18.3 and 12.2 can connect to Oracle Database 11.2 or later. Some tools may have other restrictions.

Download the appropriate Instant Client packages for your platform. All installations require the Basic or Basic Light package.

Unzip the packages into a single directory such as C:\oracle\instantclient_12_2

Add this directory to the PATH environment variable. If you have multiple versions of Oracle libraries installed, make sure the new directory occurs first in the path

Download and install the correct Visual Studio Redistributable from Microsoft. Instant Client 12.2 requires the Visual Studio 2013 redistributable. Instant Client 12.1 requires the Visual Studio 2010 redistributable .

If you intend to co-locate optional Oracle configuration files such as tnsnames.ora, sqlnet.ora, ldap.ora, or oraaccess.xml with Instant Client, then create a subdirectory C:\oracle\instantclient_12_2\network\admin

This is the default Oracle client configuration directory for applications linked with this Instant Client.

Alternatively, Oracle client configuration files can be put in another, accessible directory. Then set the environment variable TNS_ADMIN to that directory name.

Start your application.

ODBC users should follow the ODBC Installation Instructions .