OracleDatabaseMetaData.java:242:in `oracle.jdbc.driver.OracleDatabaseMetaData.getColumns'
JdbcAdapterInternalService.java:217:in `JdbcAdapterInternalService.columns'
null:-1:in `JdbcAdapterInternalServiceInvokerScolumnsxx1.call'
FastInvocationCallback.java:49:in `org.jruby.runtime.callback.FastInvocationCallback.execute'

SELECT NULL AS table_cat,
       t.owner AS table_schem,
       t.table_name AS table_name,
       t.column_name AS column_name,
       DECODE (t.data_type, 'CHAR', 1, 'VARCHAR2', 12, 'NUMBER', 3,
               'LONG', -1, 'DATE', 91, 'RAW', -3, 'LONG RAW', -4,  
               'BLOB', 2004, 'CLOB', 2005, 'BFILE', -13, 'FLOAT', 6, 
               'TIMESTAMP(6)', 93, 'TIMESTAMP(6) WITH TIME ZONE', -101, 
               'TIMESTAMP(6) WITH LOCAL TIME ZONE', -102, 
               'INTERVAL YEAR(2) TO MONTH', -103, 
               'INTERVAL DAY(2) TO SECOND(6)', -104, 
               'BINARY_FLOAT', 100, 'BINARY_DOUBLE', 101, 
               1111)
              AS data_type,
       t.data_type AS type_name,
       DECODE (t.data_precision, null, t.data_length, t.data_precision)
              AS column_size,
       0 AS buffer_length,
       t.data_scale AS decimal_digits,
       10 AS num_prec_radix,
       DECODE (t.nullable, 'N', 0, 1) AS nullable,
       NULL AS remarks,
       t.data_default AS column_def,
       0 AS sql_data_type,
       0 AS sql_datetime_sub,
       t.data_length AS char_octet_length,
       t.column_id AS ordinal_position,
       DECODE (t.nullable, 'N', 'NO', 'YES') AS is_nullable
FROM all_tab_columns t
WHERE t.owner LIKE ? ESCAPE '/'
  AND t.table_name LIKE ? ESCAPE '/'
  AND t.column_name LIKE ? ESCAPE '/'

ORDER BY table_schem, table_name, ordinal_position;