预案记录查询sql优化

YeeAmosFireAutoSysStart/src/main/resources/db/mapper/dbTemplate_contingencyOriginal.xml

@@ -5,49 +5,57 @@
 
 
 	<select id="queryForPage" resultType="map">
-		SELECT
-		DATE_FORMAT(create_date,'%Y-%m-%d %H:%i:%s') create_time,
+		SELECT * FROM(
+			SELECT
+			DATE_FORMAT(create_date,'%Y-%m-%d %H:%i:%s') create_time,
 
-			t.*
-		FROM
-			contingency_original_data t
-		WHERE
-			1 = 1
+				t.*
+			FROM
+				contingency_original_data t
+			WHERE
+				1 = 1
 
-		<if test="equipmentId!=null">
-			AND t.equipment_Id = #{equipmentId}
-		</if>
+			<if test="equipmentId!=null">
+				AND t.equipment_Id = #{equipmentId}
+			</if>
 
-		<if test="createTime!=null">
-			AND TO_DAYS(t.create_date) = TO_DAYS(#{createTime})
-		</if>
+			<if test="createTime!=null">
+				AND TO_DAYS(t.create_date) = TO_DAYS(#{createTime})
+			</if>
+		) m
+		WHERE
+			1 = 1
 		<if test="contingencyName!=null and contingencyName!=''">
-			AND t.fire_Equipment_Name like concat('%',#{contingencyName},'%')
-			OR t.equipment_Name like concat('%',#{contingencyName},'%')
+			OR m.fire_Equipment_Name like concat('%',#{contingencyName},'%')
+			OR m.equipment_Name like concat('%',#{contingencyName},'%')
 		</if>
-		order  by t.create_date desc
+		order  by m.create_date desc
 		LIMIT #{start},#{length} ;
 	</select>
 
 
 	<select id="queryCountForPage" resultType="long">
-		SELECT
-		count(1)
-		FROM
-		contingency_original_data t
-		WHERE
-		1 = 1
+		SELECT count(1)	FROM (
+			SELECT
+			*
+			FROM
+			contingency_original_data t
+			WHERE
+			1 = 1
 
-		<if test="equipmentId!=null">
-			AND t.equipment_Id = #{equipmentId}
-		</if>
+			<if test="equipmentId!=null">
+				AND t.equipment_Id = #{equipmentId}
+			</if>
 
-		<if test="createTime!=null">
-			AND TO_DAYS(t.create_date) = TO_DAYS(#{createTime})
-		</if>
+			<if test="createTime!=null">
+				AND TO_DAYS(t.create_date) = TO_DAYS(#{createTime})
+			</if>
+		) m
+		WHERE
+			1=1
 		<if test="contingencyName!=null and contingencyName!=''">
-			AND t.fire_Equipment_Name like concat('%',#{contingencyName},'%')
-			OR t.equipment_Name like concat('%',#{contingencyName},'%')
+			OR m.fire_Equipment_Name like concat('%',#{contingencyName},'%')
+			OR m.equipment_Name like concat('%',#{contingencyName},'%')
 		</if>
 	</select>