使用 cast in order by 子句 JPQL

Question

我有一个 JPQL 查询，我想在其中的 order by 子句中使用强制转换运算符。查询在 SQL 中有效，但应用程序在运行时给出了显示的错误。如何在 JPQL 查询中使用 orderby 子句中的强制转换？提前致谢。

@Query("SELECT a FROM tableA a where a.tableB.ID = :ID ORDER BY cast(col as unsigned)")

错误

Caused by: org.hibernate.QueryException: Could not resolve requested type for CAST : unsigned : unsigned [SELECT r FROM classname a where a.tableB.ID = :ID ORDER BY CAST(col as unsigned)]

Answer 1

我认为不支持未签名。 interger 可能是最接近的。

@Query("SELECT a FROM tableA a where a.tableB.ID = :ID ORDER BY cast(col as integer)")

使用 cast in order by 子句 JPQL

Use cast in order by clause JPQL

java

spring-data-jpa

jpql