create table with primary key
CREATE TABLE student_id
(
Column1 datatype,
Column2 datatype,
Column3 datatype,
PRIMARY KEY (student_id);
create table with primary key
CREATE TABLE student_id
(
Column1 datatype,
Column2 datatype,
Column3 datatype,
PRIMARY KEY (student_id);
add primary key to table
ALTER TABLE Persons
ADD PRIMARY KEY (ID);
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