How to call a Oracle database sequence number by using MyBatis?

Question

I want to call a sequence number from my Oracle Database 10g by using MyBatis, but I only get an error message like the following:

ORA-02289: Sequence is not av         


        

Answer 1

I think you use nextval for inserting.Try following:

<insert id="insertPerson" parameterType="Person" useGeneratedKeys="true"> 
  <selectKey keyProperty="personId" resultType="int" order="BEFORE">
    SELECT nextVal('mySeq')
  </selectKey>
  INSERT INTO person (personId,PersonName) VALUES (#{personId},#{personName}) 
</insert>

Also instead of SELECT nextVal('mySeq') you can use this SELECT mySeq.nextVal from dual

Answer 2

I was able to achieve this,

<dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis</artifactId>
        <version>3.5.2</version>
    </dependency> 



<select id="getUploadId" resultType="int">
    select {schema}.SEQUENCE_NAME.NEXTVAL from dual
</select>