Java determines whether a certain table exists in the database

1. Establish a JDBC data source and judge it through the Java.sql.DatabaseMetaData interface.

For example:

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2. Directly use sql statement to query from the database

select * from user_all_tables where table_name='tableName'

If the result is empty, it means it does not exist, how to If the result is not empty, it means it exists;

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