- From: Juan Sequeda <juanfederico@gmail.com>
- Date: Wed, 21 Mar 2012 07:45:06 -0500
- To: "Eric Prud'hommeaux" <eric@w3.org>, Boris Villazón Terrazas <bvillazon@fi.upm.es>
- Cc: public-rdb2rdf-wg@w3.org
Received on Wednesday, 21 March 2012 12:45:59 UTC
Eric create.sql for spec-ref-no-pk does not run automatically given that the table Department has a FK to People and People has a FK to Department. Can that be changed to use alter tables instead. CREATE TABLE "Addresses" ( "ID" INT, PRIMARY KEY("ID"), "city" VARCHAR(10), "state" CHAR(2) ); CREATE TABLE "Department" ( "ID" INT, PRIMARY KEY("ID"), "name" VARCHAR(50), "city" VARCHAR(50), UNIQUE ("name", "city"), "manager" INT ); CREATE TABLE "People" ( "ID" INT, PRIMARY KEY("ID"), "fname" VARCHAR(10), "addr" INT, FOREIGN KEY ("addr") REFERENCES "Addresses"("ID"), "deptName" VARCHAR(50), "deptCity" VARCHAR(50) ); ALTER TABLE "Department" ADD FOREIGN KEY("manager") REFERENCES "People"("ID"); ALTER TABLE "People" ADD FOREIGN KEY("deptName", "deptCity") REFERENCES "Department"("name", "city"); And another issue.. which seems to be a SQL Server: In the table Projects, which has a FK to Department, has deptName and deptCity with varchar(50) while the table Department uses varchar(10) for name and city. In Oracle, this isn't a problem, but in SQL Server, you need can only create foreign keys to attributes that have the exact datatype (you learn things every day!!) In the sql snippet that I pasted above, I already changed the datatypes of name and city to varchar(50). Thanks Juan Sequeda +1-575-SEQ-UEDA www.juansequeda.com
Received on Wednesday, 21 March 2012 12:45:59 UTC