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主機(jī)屋數(shù)據(jù)庫命名規(guī)范指南：核心規(guī)則與高效配置策略

一、核心命名規(guī)則體系

主機(jī)屋數(shù)據(jù)庫采用蛇形命名法(snake_case)作為基礎(chǔ)規(guī)范，全小寫字母配合下劃線分隔符確保跨平臺兼容性。表名需遵循以下原則：

使用名詞單數(shù)形式如user而非users
長度控制在30字符內(nèi)，超長時(shí)采用標(biāo)準(zhǔn)縮寫（desc替代description）
禁止使用SQL保留字（如group、index）

字段命名強(qiáng)調(diào)語義化設(shè)計(jì)，布爾字段需以is_/has_開頭（例：is_active），時(shí)間字段使用_at后綴（例：created_at）。

二、高效配置策略實(shí)踐

在物理設(shè)計(jì)層面推薦以下優(yōu)化策略：

索引命名遵循IDX_表名_字段組合格式，如IDX_order_user_status
外鍵約束采用FK_父表_子表_序號結(jié)構(gòu)，例如FK_user_order_01
為超過500萬行的表啟用分區(qū)管理

命名元素對照表
類型	示例
主表	product
明細(xì)表	product_dtl
視圖	v_sales_summary

三、分層結(jié)構(gòu)管理規(guī)范

根據(jù)數(shù)據(jù)倉庫架構(gòu)建立分層模型：

ODS層：存儲(chǔ)原始數(shù)據(jù)，表名添加ods_前綴
DWD層：清洗后數(shù)據(jù)使用dwd_標(biāo)識
APP層：應(yīng)用數(shù)據(jù)表以app_開頭

各層級數(shù)據(jù)庫獨(dú)立部署，通過db_層級_項(xiàng)目格式命名（例：db_dwd_ecommerce）。

管理規(guī)范下劃線建站而非禁止使用對照表數(shù)據(jù)庫管理原始數(shù)據(jù) 分隔符闡述了 published datetime title date time info liantong head dianpu entry

2025-03-11

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