如何爲新的JPA @ElementCollection編寫SQL DDL查詢

Question

我在域類（JPA）中完成了代碼更改。我添加了一個ElementCollection到實體：

@ElementCollection(targetClass = String.class) 
@CollectionTable(name = "T_NETWORK_STATE", joinColumns = {@JoinColumn(name = "NETWORK_ID")}) 
@Column(name = "STATE") 
private Set<String> states = new HashSet<>(); 

現在我想寫這種變化飛路更新數據庫腳本。我需要T_NETWORK_STATE表的SQL DDL。

我是新來編寫sql查詢。任何幫助將不勝感激！

Answer 1

CREATE TABLE T_NETWORK_STATE (
    NETWORK_ID INT, 
    STATE VARCHAR(100), 
    UNIQUE INDEX (NETWORK_ID, STATE), 
    FOREIGN KEY (NETWORK_ID) REFERENCES NETWORK(NETWORK_ID) 
);