用关系数据库实现层次模型数据库的方法探讨.pdf

2 N . 2 20004 J urnal f L udi T eachers C llege Apr . , 2000 羊四清 ( , 417000) : 结合数据结构与数据库系统理论, 利用FOXPRO 系统实现层次模型数据库的存储、检索、遍历、插 和删除等基本算法。 : 层次模型; 关系数据库系统; 树 : TP 311. 132. 3　　: A　　: 1008- 1666( 2000) 02- 0090- 04 The Discussing Of Impl ement Hierarchical Database with Relational Database YA N G 　S i- qing ( Department f C mputer Science, L udi T eachers C llege, L udi, Hunan 4 17000, China ) A bstract : C mbining data structure w ith database system the ry , m aking use f FOXPRO sy stem t implement the basic alg rithm f hierarchical database, such as database st re, search, traverse, insert, delete and s n. Key words: hierarchical m del; relati nal database system ( RDS) ; tree [ 1] : , , ORACLESY BA SEINFORMIXFOXPRODBA SE , , ( , ) , FOXPRO , , , , [ 2] , : , ( ) , , , , , 1, FOXPRO : : . T REE DBF : KEYW ORD C 4( ) DATA C 1 ( ) FAT HER C 4 ( ) : 1999- 10- 12 : ( 1966) , , , , , 20002: 91 HEIGH N 3 ( ) : KEYW ORD DAT A FAT HER HEIGH 100 1R 1002A 1001 1003D1002 1004E1002 1005 1001 B 1006C1001 1007F 1006 1008G1007 1 1009 1007 H 1010K 1007 , KEYW ORD ( ) , FAT HER ( ) FOXP RO , FOXP RO : 1. B L , : KEYW ORD DAT A FAT HER 1011L 1005 2. : T REE 1. PRG SET TA LK OFF USE T REE A CCEPT T O KEY WORD LOCAT E FOR KEYWORD= KEY WORD