Answers for "Defining the Column Constraints Whenever the unique constraint is based only on one field, we can use @Column(unique=true) on that column. Let's define a unique constraint on the personNumber fiel"

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Defining the Column Constraints Whenever the unique constraint is based only on one field, we can use @Column(unique=true) on that column. Let's define a unique constraint on the personNumber fiel

@Column(unique=true)
private Long personNumber;
Posted by: Guest on March-07-2022

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