Programming Languages

Programming Languages Logic Programming Prolog Part 2 Dr. Philip Cannata 1

Standard Oracle emp / dept Database Dr. Philip Cannata 2

Oracle Sqldeveper http://www.oracle.com/technetwork/developer-tools/sql-developer/downloads/index.html Dr. Philip Cannata 3

Oracle Sqldeveper Dr. Philip Cannata 4

Oracle Sqldeveper Cut and Paste this into here and press Dr. Philip Cannata 7

Oracle Sqldeveper This database is for this book. But, the book is old and assumes you re using sqlplus not sqldeveloper. So, ignore all of the formatting examples in the book and just do the sql. Dr. Philip Cannata 9

emp / dept Database in Prolog emp(7839, king, president, 0, 17-nov-81, 5000, 0, 10). emp(7698, blake, manager, 7839, 01-may-81, 2850, 0, 30). emp(7782, clark, manager, 7839, 09-jun-81, 2450, 0, 10). emp(7566, jones, manager, 7839, 02-apr-81, 2975, 0, 20). emp(7788, scott, analyst, 7566, 09-dec-82, 3000, 0, 20). emp(7902, ford, analyst, 7566, 03-dec-81, 3000, 0, 20). emp(7369, smith, clerk, 7902, 17-dec-80, 800, 0, 20). emp(7499, allen, salesman, 7698, 20-feb-81, 1600, 300, 30). emp(7521, ward, salesman, 7698, 22-feb-81, 1250, 500, 30). emp(7654, martin, salesman, 7698, 28-sep-81, 1250, 1400, 30). emp(7844, turner, salesman, 7698, 08-sep-81, 1500, 0, 30). emp(7876, adams, clerk, 7788, 12-jan-83, 1100, 0, 20). emp(7900, james, clerk, 7698, 03-dec-81, 950, 0, 30). emp(7934, miller, clerk, 7782, 23-jan-82, 1300, 0, 10). dept(10, accounting, new_york). dept(20, research, dallas). dept(30, sales, chicago). dept(40, operations, boston). select 'emp(' empno ', ' lower(ename) ', ' lower(job) ', ' nvl(mgr, 0) ', ' lower(hiredate) ', ' sal ', ' nvl(comm, 0) ', ' deptno ').' from emp select 'dept(' deptno ', ' lower(dname) ', ' lower(loc) ').' from dept Dr. Philip Cannata 10

?- emp(empno, Ename, Job, _, _, Sal, _, Deptno). Deptno = 10 Empno = 7839 Ename = king Job = president Sal = 5000? ; Deptno = 30 Empno = 7698 Ename = blake Job = manager Sal = 2850?... emp / dept Database in Prolog Haskell> [(empno, ename, job, sal, deptno) (empno, ename, job, _, _, sal, deptno) <- emp] Dr. Philip Cannata 11

emp / dept Database in Prolog?- emp(empno, Ename, Job, _, _, Sal, _, 10). Empno = 7839 Ename = king Job = president Sal = 5000? ; Empno = 7782 Ename = clark Job = manager Sal = 2450? ; Empno = 7934 Ename = miller Job = clerk Sal = 1300 yes?- Haskell> [(empno, ename, job, sal, deptno) (empno, ename, job, _, _, sal, deptno) <- emp, deptno == 10] Dr. Philip Cannata 12

emp / dept Database in Prolog?- emp(empno, Ename, Job, _, _, Sal, _, D), dept(d, Dname, _). D = 10 Dname = accounting Empno = 7839 Ename = king Job = president Sal = 5000? ; D = 30 Dname = sales Empno = 7698 Ename = blake Job = manager Sal = 2850? ; D = 10 Dname = accounting Empno = 7782 Ename = clark Job = manager Sal = 2450? Main> [(empno, ename, job, sal, dname) (empno, ename, job, _, _, sal, edeptno) <- emp, (deptno, dname, loc) <- dept, edeptno == deptno ] Dr. Philip Cannata 13

emp / dept Database in Prolog as Binary Relations (Triple Store) ename(7839, king). ename(7698, blake). ename(7782, clark). ename(7566, jones). ename(7788, scott). ename(7902, ford). ename(7369, smith). ename(7499, allen). ename(7521, ward). ename(7654, martin). ename(7844, turner). ename(7876, adams). ename(7900, james). ename(7934, miller). mgr(7839, 0). mgr(7698, 7839). mgr(7782, 7839). mgr(7566, 7839). mgr(7788, 7566). mgr(7902, 7566). mgr(7369, 7902). mgr(7499, 7698). mgr(7521, 7698). mgr(7654, 7698). mgr(7844, 7698). mgr(7876, 7788). mgr(7900, 7698). mgr(7934, 7782). job(7839, president). job(7698, manager). job(7782, manager). job(7566, manager). job(7788, analyst). job(7902, analyst). job(7369, clerk). job(7499, salesman). job(7521, salesman). job(7654, salesman). job(7844, salesman). job(7876, clerk). job(7900, clerk). job(7934, clerk). hiredate(7839, 17-nov-81). hiredate(7698, 01-may-81). hiredate(7782, 09-jun-81). hiredate(7566, 02-apr-81). hiredate(7788, 09-dec-82). hiredate(7902, 03-dec-81). hiredate(7369, 17-dec-80). hiredate(7499, 20-feb-81). hiredate(7521, 22-feb-81). hiredate(7654, 28-sep-81). hiredate(7844, 08-sep-81). hiredate(7876, 12-jan-83). hiredate(7900, 03-dec-81). hiredate(7934, 23-jan-82). salary(7839, 5000). salary(7698, 2850). salary(7782, 2450). salary(7566, 2975). salary(7788, 3000). salary(7902, 3000). salary(7369, 800). salary(7499, 1600). salary(7521, 1250). salary(7654, 1250). salary(7844, 1500). salary(7876, 1100). salary(7900, 950). salary(7934, 1300). deptno(7839, 10). deptno(7698, 30). deptno(7782, 10). deptno(7566, 20). deptno(7788, 20). deptno(7902, 20). deptno(7369, 20). deptno(7499, 30). deptno(7521, 30). deptno(7654, 30). deptno(7844, 30). deptno(7876, 20). deptno(7900, 30). deptno(7934, 10). Dr. Philip Cannata 14

emp / dept Database in Prolog as Binary Relations (Triple Store)?- ename(e, Ename), job(e, Job), salary(e, Salary), deptno(e, Deptno). Deptno = 10 E = 7839 Ename = king Job = president Salary = 5000? ; Deptno = 30 E = 7698 Ename = blake Job = manager Salary = 2850? ; Deptno = 10 E = 7782 Ename = clark Job = manager Salary = 2450? Haskell> [(empno, ename, job, sal, deptno) (x0, empno) <- empno, (x1, ename) <- ename, (x2, job) <- job, (x3, sal) <- sal, (x4, deptno) <- deptno, x0 == x1 && x1 == x2 && x2 == x3 && x3 == x4] Dr. Philip Cannata 15

These are all the same relation name = [ (7839, "KING"), (7698, "BLAKE"), (7782, "CLARK"), (7566, "JONES"), (7788, "SCOTT"), (7902, "FORD"), (7369, "SMITH"), (7499, "ALLEN"), (7521, "WARD"), (7654, "MARTIN"), (7844, "TURNER"), (7876, "ADAMS"), (7900, "JAMES"), (7934, "MILLER") ] name(7839, KING). name(7698, BLAKE). name(7782, CLARK). name(7566, JONES). name(7788, SCOTT). name(7902, FORD). name(7369, SMITH). name(7499, ALLEN). name(7521, WARD). name(7654, MARTIN). name(7844, TURNER). name(7876, ADAMS). name(7900, JAMES). name(7934, MILLER). (7839, name, KING) (7698, name, BLAKE) (7782, name, CLARK) (7566, name, JONES) (7788, name, SCOTT) (7902, name, FORD) (7369, name, SMITH) (7499, name, ALLEN) (7521, name, WARD) (7654, name, MARTIN) (7844, name, TURNER) (7876, name, ADAMS) (7900, name, JAMES) (7934, name, MILLER) Also called a triple store. Also a form of a graph. Haskell Prolog RDF * Also called Predicates ( Predicate Logic the science of correct thinking. ) * see Dr. Philip Cannata 16

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