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CSCI 4333 Database Design and Implementation – Exercise (2)

CSCI 4333 Database Design and Implementation – Exercise (2). Xiang Lian The University of Texas – Pan American Edinburg, TX 78539 lianx@utpa.edu. Relational Algebra and SQL (1). Find ids of sailors who’ve reserved boat with bid 103 Sailors ( sid , sname ) Reserves ( sid , bid, date )

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CSCI 4333 Database Design and Implementation – Exercise (2)

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  1. CSCI 4333 Database Design and Implementation – Exercise (2) Xiang Lian The University of Texas – Pan American Edinburg, TX 78539 lianx@utpa.edu

  2. Relational Algebra and SQL (1) • Find ids of sailors who’ve reserved boat with bid 103 • Sailors (sid, sname) • Reserves (sid, bid, date) • Boats (bid, bname, color) 1. Relational algebra (s and p): 2. SQL:

  3. Relational Algebra and SQL (2) • Find the names of sailors who’ve reserved boat with bid 103 • Sailors (sid, sname) • Reserves (sid, bid, date) • Boats (bid, bname, color) 1. Relational algebra (s and p): 2. SQL:

  4. Relational Algebra and SQL (3) • Find the names of sailors who’ve reserved a red boat • Sailors (sid, sname) • Reserves (sid, bid, date) • Boats (bid, bname, color) 1. Relational algebra (s and p): 2. SQL:

  5. Relational Algebra and SQL (4) • Find the names of sailors who’ve reserved a red or a green boat • Sailors (sid, sname) • Reserves (sid, bid, date) • Boats (bid, bname, color) 1. Relational algebra (s and p): 2. SQL:

  6. Relational Algebra and SQL (5) • Find the names of sailors who’ve reserved a red and a green boat • Sailors (sid, sname) • Reserves (sid, bid, date) • Boats (bid, bname, color) 1. Relational algebra (s and p): 2. SQL:

  7. Relational Algebra and SQL (6) • Find the ids of sailors who have made at least two reservations on the same date • Sailors (sid, sname) • Reserves (sid, bid, date) • Boats (bid, bname, color) 1. Relational algebra (s and p): 2. SQL:

  8. Relational Algebra and SQL (7) • 1. Find the ids of sailors who’ve reserved allboats • 2. Find the ids of sailors who’ve reserved allred boats • 3. Find the names of sailors who’ve reserved allred boats • Sailors (sid, sname) • Reserves (sid, bid, date) • Boats (bid, bname, color) 1. Relational algebra (s and p): 2. SQL:

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