Original: Compared to SQL, however, it is more complex but less powerfulSee the Introduction (p. 4) of "expert one-on-one: J2EE Desing and Development", (c) 2002 wrox press.
Simplified: It is more complex but less powerful than SQLSee the Introduction (p. 4) of "expert one-on-one: J2EE Desing and Development", (c) 2002 wrox press.