2. Learning SQL: Generate, Manipulate, & Retrieve Data (3rd Edition)
By Alan Beaulieu — comprehensive SQL book.
View PDF4. SQL The Complete Reference, 3rd Edition
By James R. Groff & Paul N. Weinberg — full reference manual.
View PDFOpen-access PDF resources for learning SQL — direct links verified.
By Alan Beaulieu — comprehensive SQL book.
View PDFBy James R. Groff & Paul N. Weinberg — full reference manual.
View PDF