China hownet periodical full-text database is the world's largest continuously and dynamically updated China periodical full-text database, with 8 million full-text documents and150,000 bibliographies, which are divided into nine photo albums and 126 special literature databases. Collection period: 1994 and 6 100, the data integrity of full-text journals reached 98%.

Brief introduction of China hownet periodical full-text database;

1. Knowledge source: 6 100 full-text core journals and professional journals published publicly in China.

2. Coverage: science and technology A (physical chemistry), science and technology B (chemical energy and materials), science and technology C (industrial technology), agriculture, medicine and health, literature, history and philosophy, economic, political and legal knowledge, education and social science, electronic technology and information science.

3. Product form: China periodical full-text database (online version), China academic journal and China periodical full-text database CD-ROM version. The theme full-text database of 1994-2000 has been published in a bound volume, and each theme database contains 1-2 DVD discs.

4. Update frequency: the websites of CNKI Center and Database Exchange Service Center are updated daily, and each mirror site can transmit data through the Internet or satellite to realize daily update. The album CD is updated monthly (the literature, history and philosophy album is updated every two months) and the special CD is updated once a year.