<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
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<mapper namespace="com.ruoyi.require.mapper.FeStandardSubstanceMapper">
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<!-- 通用查询映射结果 -->
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<resultMap id="BaseResultMap" type="com.ruoyi.require.pojo.FeStandardSubstance">
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<id column="id" property="id" />
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<result column="name" property="name" />
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<result column="model" property="model" />
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<result column="factory_manufacturer" property="factoryManufacturer" />
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<result column="factory_num" property="factoryNum" />
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<result column="manage_num" property="manageNum" />
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<result column="uncertainty" property="uncertainty" />
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<result column="quantity" property="quantity" />
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<result column="acquisition_date" property="acquisitionDate" />
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<result column="effective_date" property="effectiveDate" />
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<result column="file_num" property="fileNum" />
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<result column="position" property="position" />
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<result column="state" property="state" />
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<result column="remark" property="remark" />
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<result column="create_user" property="createUser" />
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<result column="create_time" property="createTime" />
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<result column="update_user" property="updateUser" />
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<result column="update_time" property="updateTime" />
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</resultMap>
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<select id="getPage" resultType="com.ruoyi.require.pojo.FeStandardSubstance">
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select s.*,
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GREATEST(COALESCE(s.quantity, 0) - COALESCE((
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SELECT SUM(CASE WHEN r.borrow_quantity IS NULL THEN COALESCE(s.quantity, 0)
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ELSE r.borrow_quantity END)
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FROM cnas_fe_standard_substance_record r
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WHERE r.substance_id = s.id AND COALESCE(r.status, '0') <> '1'
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), 0), 0) AS remaining_quantity
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from cnas_fe_standard_substance s
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<where>
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<if test="ew.name != null and ew.name != ''">
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s.name like CONCAT('%', #{ew.name}, '%')
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</if>
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<if test="ew.factoryManufacturer != null and ew.factoryManufacturer != ''">
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and s.factory_manufacturer like CONCAT('%', #{ew.factoryManufacturer}, '%')
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</if>
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<if test="ew.factoryNum != null and ew.factoryNum != ''">
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and s.factory_num like CONCAT('%', #{ew.factoryNum}, '%')
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</if>
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<if test="ew.manageNum != null and ew.manageNum != ''">
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and s.manage_num like CONCAT('%', #{ew.manageNum}, '%')
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</if>
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<if test="ew.model != null and ew.model != ''">
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and s.model like CONCAT('%', #{ew.model}, '%')
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</if>
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<if test="ew.effectiveDate != null and ew.effectiveDate != ''">
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and s.effective_date = #{ew.effectiveDate}
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</if>
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<if test="ew.fileNum != null and ew.fileNum != ''">
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and s.file_num like CONCAT('%', #{ew.fileNum}, '%')
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</if>
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<if test="ew.position != null and ew.position != ''">
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and s.position like CONCAT('%', #{ew.position}, '%')
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</if>
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</where>
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ORDER BY s.acquisition_date DESC, s.id DESC
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</select>
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</mapper>
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