This project attempts to implement a Database using B+Tree. The project has developed a DATABASE SYSTEM with lesser memory consumption. Its API includes simple SQL Statements and the output is displayed on the screen. Certain applications for which several features of existing databases like concurrency control, transaction management, security features are not enabled. B+Trees can be used as an index for factor access to the data. Help facility is provided to know the syntax of SQL Statements.
摘 要: 本文件是C8051單片機(jī)I2C總線讀寫測試程序;將跳線器JP6短接,使用外部22.1184MHz晶振.
功能:定義 0 ~ 9 鍵為數(shù)字鍵, A ~ F 為功能鍵。按 A 鍵后,可按0 ~ 9 數(shù)字鍵,
從零地址開始存儲(chǔ)該鍵值,并送LED數(shù)碼管上顯示該鍵值。按 C 鍵停止后,按 B 鍵,
從零地址開始讀取數(shù)據(jù)值,并送LED數(shù)碼管上顯示。讀取速度每秒一次。在按 C 鍵停止后,可按 A 鍵重新輸入。