Solved 5 Consider The Following Schema Suppliers Database Chegg Question: 3 consider the following schema: suppliers (sid: integer, sname: string, address: string) parts (pid: integer, pname: string, color: string) catalog (sid: integer, pid: integer, cost: real) find reational algebra for the names of suppliers who supply some red part?. Exercise 1 (sql queries) consider the following schema: suppliers (sid : integer, sname : string, city : string) parts (pid : integer, pname : string, color : string) catalog (sid : integer, pid : integer, cost : real).

Solved 3 Consider The Following Schema Suppliers Sid Chegg Find the sids of suppliers who supply every part. find the names of suppliers who supply some red part. this question requires the application of relational algebra to query a database schema. (b) domain relational calculus: list supplier part (sid pid) pairs where the part has the highest cost from this supplier. Therefore, sid is the key for suppliers, pid is the key for parts, and sid and pid together form the key for catalog. the catalog relation lists the prices charged for parts by suppliers. In each case, state any assumptions about the schemas for r1 and r2 that are needed to make the expression meaningful: (1) r1 [ r2, (2) r1 \ r2, (3) r1 − r2, (4) r1 × r2, (5) σa=5 (r1), (6) πa (r1), and (7) r1=r2, consider the following schema: suppliers (sid: integer, sname: string, address: string) parts (pid: integer, pname: string.

Solved 3 Consider The Following Schema Suppliers Sid Chegg Therefore, sid is the key for suppliers, pid is the key for parts, and sid and pid together form the key for catalog. the catalog relation lists the prices charged for parts by suppliers. In each case, state any assumptions about the schemas for r1 and r2 that are needed to make the expression meaningful: (1) r1 [ r2, (2) r1 \ r2, (3) r1 − r2, (4) r1 × r2, (5) σa=5 (r1), (6) πa (r1), and (7) r1=r2, consider the following schema: suppliers (sid: integer, sname: string, address: string) parts (pid: integer, pname: string. Therefore sid is the key for suppliers, pid is the key for parts, and sid and pid together form the key for catalog. the catalog relation lists the prices charged for parts by suppliers. To find suppliers (sid) who charge more than the average price for the same part: select avg(c2.cost) from catalog c2. where c2.pid = c1.pid. b. to find suppliers who supply a red or green part: c. to find the name and most expensive part of suppliers who supply both red and green parts: select c1.sid. from catalog c1. Consider the following schema: suppliers (sid: integer, sname: string, street: string, city: string, zip: string) parts (pid: integer, pname: string, color: string) catalog (sid: integer, pid: integer, cost: real) the primary key attributes are underlined, and the domain of each attribute is listed after the attribute name. Q. 26 consider the following relational schema: suppliers(sid:integer, sname:string, city:string, street:string) parts(pid:integer, pname:string, color:string) catalog(sid:integer, pid:integer, cost:real) assume that, in the suppliers relation above, each supplier and each street within a city has a unique name, and (same, city) forms a.

Solved 3 Consider The Following Schema Suppliers Sid Chegg Therefore sid is the key for suppliers, pid is the key for parts, and sid and pid together form the key for catalog. the catalog relation lists the prices charged for parts by suppliers. To find suppliers (sid) who charge more than the average price for the same part: select avg(c2.cost) from catalog c2. where c2.pid = c1.pid. b. to find suppliers who supply a red or green part: c. to find the name and most expensive part of suppliers who supply both red and green parts: select c1.sid. from catalog c1. Consider the following schema: suppliers (sid: integer, sname: string, street: string, city: string, zip: string) parts (pid: integer, pname: string, color: string) catalog (sid: integer, pid: integer, cost: real) the primary key attributes are underlined, and the domain of each attribute is listed after the attribute name. Q. 26 consider the following relational schema: suppliers(sid:integer, sname:string, city:string, street:string) parts(pid:integer, pname:string, color:string) catalog(sid:integer, pid:integer, cost:real) assume that, in the suppliers relation above, each supplier and each street within a city has a unique name, and (same, city) forms a.

Solved 3 Consider The Following Schema Suppliers Sid Chegg Consider the following schema: suppliers (sid: integer, sname: string, street: string, city: string, zip: string) parts (pid: integer, pname: string, color: string) catalog (sid: integer, pid: integer, cost: real) the primary key attributes are underlined, and the domain of each attribute is listed after the attribute name. Q. 26 consider the following relational schema: suppliers(sid:integer, sname:string, city:string, street:string) parts(pid:integer, pname:string, color:string) catalog(sid:integer, pid:integer, cost:real) assume that, in the suppliers relation above, each supplier and each street within a city has a unique name, and (same, city) forms a.