java - 如何使用java从sql server获取主键约束名称

Question

假设对于下表，我想获取主键约束名称 uapplication_pkey

CREATE TABLE application
(
  applicationid integer NOT NULL,
  screatedby character varying(255),
  screatedon timestamp without time zone,
  sfwversion integer,
  smodifiedby timestamp without time zone,
  smodifiedon character varying(255),
  stenantid character varying(255),
  CONSTRAINT uapplication_pkey PRIMARY KEY (applicationid)
)

我已经从这个How to get the exact "constraint name" from SQLException 得到了帮助

但找不到解决方案。

Answer 1

您可以使用 DatabaseMetadata界面。

DatabaseMetaData meta = connection.getMetaData();

例子:

DatabaseMetaData meta=conn.getMetaData();
rs= meta.getTables(null, null, tablename, new String[]{"TABLE"});
rs=meta.getPrimaryKeys(null, null, tablename);
while(rs.next())