sql_上移_下移_置顶_置底
2021/10/13 19:15:54
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<!--置顶--> <update id="moveTop" parameterType="com.hisign.oses.entity.os.Jcybxx"> UPDATE <include refid="TableClause"/> SET XH = (CASE WHEN XH = #{xh} THEN 1 ELSE XH + 1 END) WHERE instr( (SELECT if(rn = 1, NULL, bhs) FROM ( SELECT group_concat(BH) AS bhs, count(*) AS rn FROM ( SELECT BH FROM <include refid="TableClause"/> WHERE WTZJBH = #{wtzjbh} AND XH <![CDATA[ <= ]]> #{xh} AND SCBJ = 0) t) t), BH) <![CDATA[ > ]]> 0 </update> <!--上移--> <update id="moveUp" parameterType="com.hisign.oses.entity.os.Jcybxx"> UPDATE <include refid="TableClause"/> SET XH = (CASE WHEN XH = #{xh} THEN #{xh} - 1 ELSE #{xh} END) WHERE instr( (SELECT if(rn = 2, bhs, NULL) FROM ( SELECT group_concat(BH) AS bhs, count(*) AS rn FROM ( SELECT BH FROM <include refid="TableClause"/> WHERE WTZJBH = #{wtzjbh} AND XH <![CDATA[ <= ]]> #{xh} AND SCBJ = 0 ORDER BY XH DESC LIMIT 2 ) t) t), BH) <![CDATA[ > ]]> 0 </update> <!--下移--> <update id="moveDown" parameterType="com.hisign.oses.entity.os.Jcybxx"> UPDATE <include refid="TableClause"/> SET XH = (CASE WHEN XH = #{xh} THEN #{xh} + 1 ELSE #{xh} END) WHERE instr( (SELECT if(rn = 2, bhs, NULL) FROM ( SELECT group_concat(BH) AS bhs, count(*) AS rn FROM ( SELECT BH FROM <include refid="TableClause"/> WHERE WTZJBH = #{wtzjbh} AND XH <![CDATA[ >= ]]> #{xh} AND SCBJ = 0 ORDER BY XH LIMIT 2 ) t) t), BH) <![CDATA[ > ]]> 0 </update> <!--置底--> <update id="moveBottom" parameterType="com.hisign.oses.entity.os.Jcybxx"> UPDATE <include refid="TableClause"/> SET XH = (CASE WHEN XH = #{xh} THEN @maxord ELSE XH - 1 END) WHERE instr( (SELECT if(rn = 1, NULL, bhs) FROM ( SELECT group_concat(BH) as bhs, count(*) AS rn, (SELECT @maxord:= (SELECT MAX(XH))) AS maxord FROM (SELECT BH,XH FROM <include refid="TableClause"/> WHERE WTZJBH = #{wtzjbh} AND XH <![CDATA[ >= ]]> #{xh} AND SCBJ = 0) t) t),BH) <![CDATA[ > ]]> 0 </update>
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