PLZ help with the following:

1. Note that the underlined attributes constitute each tables primary key. You will also do well to note that the PAINTING table has foreign keys relationships into the GALLERY table via its GAL_NUM attribute and PAINTER table via PTR_NUM attribute. Please explore the database and then write the appropriate SQL command to answer the following questions.

   A) Using the integrity enhancement features of SQL, please add the following constraints:

   1. Create the foreign keys for this database and any missing primary keys.

   2. PTNG_PRICE values in PAINTING table must be greater than 100$ and less than a

      10000$

   3. No two titles with the same names in PAINTING table

sql file

CREATE TABLE GALLERY ( GAL_NUM char(4), GAL_OWNER varchar(35), GAL_AREACODE char(3), GAL_PHONE char(8), GAL_RATE number ); INSERT INTO GALLERY VALUES('5','L. R. Gilliam','901','123-4456',0.37); INSERT INTO GALLERY VALUES('6','G. G. Waters','405','353-2243',0.45 ); INSERT INTO GALLERY VALUES('1','N. D. Cosner','203','123-9956',0.67); INSERT INTO GALLERY VALUES('2','S. H. Artwork','415','154-3243',0.30);

/* -- */

CREATE TABLE PAINTER ( PTR_NUM char(4), PTR_LASTNAME varchar(15) NOT NULL, PTR_FIRSTNAME varchar(15) NOT NULL, PTR_AREACODE char(3), PTR_PHONE char(8) ); INSERT INTO PAINTER VALUES('123','Ross','Georgette','901','885-4567'); INSERT INTO PAINTER VALUES('126','Itero','Julio','901','346-1112'); INSERT INTO PAINTER VALUES('127','Geoff','George','615','221-4456');

/* -- */

CREATE TABLE PAINTING ( PTNG_NUM char(4), PTNG_TITLE varchar(35), PTNG_PRICE number, PTR_NUM char(4), GAL_NUM char(4) ); INSERT INTO PAINTING VALUES('1338','Dawn Thunder',245.5,'123','5'); INSERT INTO PAINTING VALUES('1339','A Faded Rose',6723,'123','1'); INSERT INTO PAINTING VALUES('1340','The Founders',567.99,'126','6'); INSERT INTO PAINTING VALUES('1341','Hasty Pudding Exit',145.5,'123',''); INSERT INTO PAINTING VALUES('1342','Plastic Paradise',8328.99,'126','6'); INSERT INTO PAINTING VALUES('1343','Roamin''',785,'127','6'); INSERT INTO PAINTING VALUES('1344','Wild Waters',999,'127','5'); INSERT INTO PAINTING VALUES('1345','Stuff ''n Such ''n Some',9800,'123','5');