Question: sql coding i nedd only the higlight qusetions Question 1: Assume the following SQL statement: CREATE TABLE person ( id int primary key IDENTITY (100,-2)

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i nedd only the higlight qusetions sql coding i nedd only the higlight qusetions Question 1: Assume

Question 1: Assume the following SQL statement: CREATE TABLE person ( id int primary key IDENTITY (100,-2) Name varchar(30) NULL, License_num char(5), status varchar(30) DEFAULT 'single', age int NOT NULL CONSTRAINT ung_lens UNIQUE (License_num) ); 1- Insert three rows into this table 2- Delete the UNIQUE constraint on the column License_num Alter table person Drop constraint ung_lens: 3- Add a column 'job' to the table

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