Oracle data garbled solution

Problem Description

  When using PLSQL to insert Chinese, the data is garbled.

Cause Analysis

The encoding used by the PLSQL client is inconsistent with the server-side encoding, and garbled characters will appear when inserting Chinese characters.

Solution

  View server-side encoding

select userenv('language') from dual;

The actual result of the query is: AMERICAN_AMERICA.ZHS16GBK

   Look at the V$NLS_PARAMETERS item for NLS_LANGUAGE

select * from V$NLS_PARAMETERS WHERE PARAMETER = 'NLS_LANGUAGE

Mine is AMERICAN which is inconsistent with the AMERICAN_AMERICA.ZHS16GBK in the first step. Environment variables need to be configured.

  PLSQL client computer sets environment variables

Computer->Properties->Advanced System Settings->Environment Variables->New
Set variable name: NLS_LANG, variable value: the value found in step 1, mine is AMERICAN_AMERICA.ZHS16GBK

  RestartPLSQL

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