Column « JPA « Java Tutorial

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22.21.Column
	22.21.1.	Unique, Not Nullable Column
	22.21.2.	Specify Column Definition To Field
	22.21.3.	Set Precision And Scale
	22.21.4.	Set Column Length
	22.21.5.	Java String Mapped To Varchar
	22.21.6.	Java Long Mapped To Big Int
	22.21.7.	Java Int Mapped To Integer
	22.21.8.	Use Varchar Type As Column Type
	22.21.9.	Compound Primary key
	22.21.10.	Change Default Column Name