Education Research Complete provides better journal coverage, and direct access to many journal articles, while ERIC includes many more non-journal sources. Both include trade journals as well as scholarly publications.
These databases include scholarly literature from many different subject areas.
ERIC is a government-created database that tracks education literature, published both in journal articles and in informally-published reports/papers.
Each record in the database is assigned an ED or EJ number.
ED stands for ERIC Document, and represents a wide-range of education-related materials from publishers, research centers, policy organizations, the U.S. Department of Education, other federal and state agencies, and conference. Most EDs are available online free of charge (unless it’s a book). Older ED’s may or may not be online – if not, ask me to see if we have it in our microfiche collection.
EJ stands for ERIC Journal article. These will not be available full text within ERIC.
Trade journals are written for practicing teachers and others in education. They will reflect challenges facing the field, represent practitioners' concerns, and translate original research into practical advice.