Install Oracle Client 12c Link

Title:

Step-by-Step Guide: How to Install Oracle Client 12c on Windows

# Configure Oracle Client cx_Oracle.init_oracle_client(lib_dir='/u01/app/oracle/product/12.2.0/client/lib') install oracle client 12c

For Instant Client, use SQL*Plus from the instant client package or connect via application drivers (OCI, ODBC, JDBC thin driver doesn’t require client).

logger.info("Connection pool closed")

./runInstaller - silent or GUI, follow prompts.
After installation, run root scripts as prompted.

Add a local TNS entry (e.g., ORCL = (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=dbhost)(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=orcl))))
Or do it later using netca from Start Menu.