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Oracle Database Design Small Details

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1. If you use powerdesigner such a tool, be careful to remove the double quotation marks from the table in the exported SQL statement for the tool.

2. When building tables and building fields, use underscores between different words, such as rec_id

3. The numeric Type field in Oracle, you should determine the precision, when using MBG reverse generation, you can determine whether it is an integer or BigDecimal.

4. NVARCHAR2 and NVARCHAR2 in Oracle are recognized as object types when they are MBG reverse generation, and VARCHAR2 is recommended.

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Oracle Database Design Small Details

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