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ÔÚʹÓÃhibernateµÄ·ÃÎÊderbyµÄʱºò，Óöµ½ÁËÒ»¸öÎÊÌâ，¾ÍÊÇÈçºÎÓ³ÉäbooleanÀàÐ͵ÄÊý¾ÝÄØ？ ËÑË÷°æÌå°ëÌìÎÞ¹û¡£ Ô­À´derby²»Ö§³Öboolean, À´Ô´http://db.apache.org/ddlutils/databases/derby.html JDBC Type Database Type Additional comments ARRAY BLOB Will be read back as BLOB BIGINT BIGINT BINARY CHAR(n) FOR BIT DATA BIT SMALLINT Cloudscape/Derby have no native boolean type Will be read back as SMALLINT BLOB BLOB BOOLEAN SMALLINT Cloudscape/Derby have no native boolean type Will be read back as BOOLEAN CHAR CHAR CLOB CLOB DATALINK LONG VARCHAR FOR BIT DATA Will be read back as LONGVARBINARY DATE DATE DECIMAL DECIMAL DISTINCT BLOB Will be read back as BLOB DOUBLE Cloudscape: DOUBLE PRECISION Derby: DOUBLE FLOAT Cloudscape: DOUBLE PRECISION Derby: DOUBLE Will be read back as DOUBLE INTEGER INTEGER JAVA_OBJECT BLOB Will be read back as BLOB LONGVARBINARY LONG VARCHAR FOR BIT DATA LONGVARCHAR LONG VARCHAR NULL LONG VARCHAR FOR BIT DATA Will be read back as LONGVARBINARY NUMERIC NUMERIC OTHER BLOB Will be read back as BLOB REAL REAL REF LONG VARCHAR FOR BIT DATA Will be read back as LONGVARBINARY SMALLINT SMALLINT STRUCT BLOB Will be read back as BLOB TIME TIME TIMESTAMP TIMESTAMP TINYINT SMALLINT Will be read back as SMALLINT VARBINARY VARCHAR(n) FOR BIT DATA VARCHAR VARCHAR