2025-03-26 19:41:41 +08:00
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# 介绍
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2025-03-26 19:43:42 +08:00
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tag用于表示当前对象分类的一些特殊信息,如当前对象分类是否为抽象类、是否为叶子分类
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# 注意
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==**不建议随意更新tag值!**==
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==**不建议随意更新tag值!**==
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==**不建议随意更新tag值!**==
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# 操作方式
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2025-03-26 19:45:42 +08:00
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**只建议更新新创建出的物料分类tag值!**
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在 [批量导入](../相关操作/2.0-PDM/25.物料分类设置.md#批量导入) 物料分类后,想要批量设置非叶子节点为抽象类,可以打开数据库执行如下语句
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```sql
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SELECT
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tag,
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COUNT(*) AS count
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FROM
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cfobjkind
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WHERE
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objtypeid = 21
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AND builtin = 1
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GROUP BY
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tag
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ORDER BY
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tag;
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```
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这个语句可以查询出所有用户创建出的物料分类
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2025-03-26 19:53:42 +08:00
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正常情况下只会输出三行内容,其tag一列可能会有三个值:`67174405`、`67174401`、`67305473`
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2025-03-26 19:47:42 +08:00
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1. `67174405`:非叶子节点,且是抽象类
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2. `67174401`:非叶子节点,不是抽象类
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2025-03-26 19:49:42 +08:00
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3. `67305473`:叶子节点
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2025-03-26 19:51:42 +08:00
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**如果出现了其他值,请立即放弃使用数据库批量设置抽象类!**
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2025-03-26 19:55:42 +08:00
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如果查出来的tag只有这三个值,或只有 `67174401`、`67305473` 两个值,那么我们可以通过如下语句**批量设置非叶子节点为抽象类**
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```sql
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UPDATE cfobjkind
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SET tag = 67174405
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WHERE objtypeid = 21
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AND builtin = 1
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AND tag = 67174401;
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```
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