Write Policy

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When using the Fluent API, set column write policies to control INSERT/UPDATE behavior.

Disallow updates: excluded from UPDATE SET

@Table
public class Users {
    ...
    @Column(name = "create_time", update = false) // Column excluded from updates
    private Date    createTime;
    ...
}

Disallow inserts: excluded from INSERT values

@Table
public class Users {
    ...
    @Column(name = "create_time", insert = false) // Column excluded from inserts
    private Date    createTime;
    ...
}