Judgment method:
First establish the JDBC data source, and then determine whether the database table exists through the Java.sql.DatabaseMetaData interface.
The example is as shown:
##Remarks: Parameter analysis
getConnection("jdbc:oracle:" "thin:@127.0.0.1:1521:orcl", "username","password");getTables(String catalog,String schemaPattern,String tableNamePattern,String[ ] types)Parameters: catalog: catalog name, usually emptyParameters: schema: database name, for Oracle, it is the user nameParameters: tablename: Table nameParameters: type: type of table (TABLE | VIEW)Note: During use, parameter names must be in uppercase letters.
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