[MySQL] Generate data dictionary
Data dictionary is one of the document to present data content. It majorly used in ETL to ensure data capture correctly. In MySQL, data dictionary can generate with MySQL workbench plugin. This demo will show […]
Data dictionary is one of the document to present data content. It majorly used in ETL to ensure data capture correctly. In MySQL, data dictionary can generate with MySQL workbench plugin. This demo will show […]
當rename database 時, 有時會出現elusive lock 問題. 這是因為執行時有其他user 正在使用而令database locked.
利用SQL 制作report 時, 有時為了參考, 便在query 中加入 row no. 在Oracle 中, 可以透過hierarchy query 進行.
接觸不同application, 會見到部份DB使用increment number或者GUID做Primary Key (PK). 自己也有點好奇, 故記錄如下:
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