Oracle Database Design Small Details

Source: Internet
Author: User

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.


All people are in the dynamic development, do not try to use the current vision, to see what will happen in the future. In other words: Do not preset the future, not afraid of the future.

Oracle Database Design Small Details

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