MyBatis的SQL执行结果和客户端执行结果不一致问题排查

CREATE TABLE t_test_table (
"ID" NUMBER(18,0), 
"CREATE_TIME" TIMESTAMP(6),
"FIELD_TYPE" CHAR(20),
CONSTRAINT pk_id PRIMARY KEY(ID)
)

CREATE SEQUENCE seq_t_test_table;

INSERT INTO t_test_table ("ID", "CREATE_TIME", "FIELD_TYPE") VALUES (SEQ_T_TEST_TABLE.nextval, SYSDATE - NUMTODSINTERVAL(1, 'DAY'), 'Integer');
INSERT INTO t_test_table ("ID", "CREATE_TIME", "FIELD_TYPE") VALUES (SEQ_T_TEST_TABLE.nextval, SYSDATE - NUMTODSINTERVAL(1, 'HOUR'), 'Double');
INSERT INTO t_test_table ("ID", "CREATE_TIME", "FIELD_TYPE") VALUES (SEQ_T_TEST_TABLE.nextval, SYSDATE - NUMTODSINTERVAL(1, 'MINUTE'), 'Long');

<select id="selectByFieldType" resultType="com.scd.model.po.TestTable">
        SELECT * FROM T_TEST_TABLE WHERE FIELD_TYPE = #{filedType}
</select>

  <select id="selectByFieldType" resultType="com.scd.model.po.TestTable">
        SELECT * FROM T_TEST_TABLE WHERE FIELD_TYPE = '${filedType}'
    </select>

import org.junit.Test;
import java.sql.*;
import java.util.Properties;

/**
 * @author James
 * @date 2022/12/10 19:02
 */
public class OracleJdbc {

    private static final String driver = "oracle.jdbc.driver.OracleDriver";

    private static final String url = "jdbc:oracle:thin:@localhost:1521/TEST";

    private static final String userName = "TEST_USER";

    private static final String password = "TEST_USER";

    static {
        // 加载驱动
        try {
            Class.forName(driver);
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        }
    }

    public Connection createConnection(String url, String userName, String password) {
        Connection connection = null;
        try {
            connection = DriverManager.getConnection(url, userName, password);
        } catch (SQLException e) {
            e.printStackTrace();
        }
        return connection;
    }

    @Test
    public void testStrQuery() {
        try (Connection connection = createConnection(url, userName, password)) {
            String sql = "SELECT * FROM T_TEST_TABLE WHERE FIELD_TYPE = ?";
            PreparedStatement preparedStatement = connection.prepareStatement(sql);
            preparedStatement.setString(1, "Double");
            preparedStatement.execute();
            while (preparedStatement.getMoreResults()) {
                System.out.println(preparedStatement.getResultSet());
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}

select * from  v$sql WHERE SQL_TEXT LIKE '%T_TEST_TABLE%'
ORDER BY FIRST_LOAD_TIME DESC;

SELECT * FROM T_TEST_TABLE WHERE FIELD_TYPE = :1 

SELECT * FROM T_TEST_TABLE WHERE FIELD_TYPE = 'Double'

ALTER TABLE T_TEST_TABLE MODIFY "FIELD_TYPE" VARCHAR2(20)

UPDATE T_TEST_TABLE SET FIELD_TYPE = TRIM(FIELD_TYPE)