多个left join结合动态sql的代码语句

Posted 2021-10-18 来老铁干了这碗代码

    <sql id="unionColumns">
        b.id AS id
        , b.gmt_create AS gmtCreate
        , b.gmt_modified AS gmtModified
        , b.corp_id AS corpId
        , b.corp_name AS corpName
    </sql>

    <sql id="baseColumns">
        b.id,
        b.gmt_create,
        b.gmt_modified,
        b.corp_id,
        b.corp_name,
        e.assign_time,
    </sql>


    <sql id="Where_CorpDeploy">
        <if test="corpId != null">
            and b.corp_id = #{corpId}
        </if>
        <if test="corpName != null">
            and b.corp_name LIKE concat('%',#{corpName},'%')
        </if>
    </sql>


    <sql id="limitSql">
        limit
        <if test="pageNo > 0">
            #{start},
        </if>
        <if test="pageNo=0">0,</if>
        #{pageSize}
    </sql>


    <select id="xxxDeployDO" resultType="xxx.DeployDO"
            parameterType="xxx.Query">
        SELECT
        <include refid="unionColumns"/>
        FROM (
            SELECT
            <include refid="baseColumns"/>
            FROM corp_deploy_info b
            left join corp_deploy_assign e
            on e.id = b.deploy_assign_id
            left join corp_gmv c
            on b.corp_id = c.corp_id
            WHERE 1 = 1
            <include refid="Where_CorpDeploy"/>
            <include refid="limitSql"/>
        )b
        left join corp_gmv c
        on b.corp_id = c.corp_id
    </select>