Add PRIMARY KEY in table creation : Primary Key « Constraints « PostgreSQL

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PostgreSQL » Constraints » Primary Key   Add PRIMARY KEY in table creation postgres=# postgres=# CREATE TABLE new_books postgres-#               (id integer CONSTRAINT books_id_pkey PRIMARY KEY, postgres(#               title text NOT NULL, postgres(#               author_id integer, postgres(#               subject_id integer); NOTICE:  CREATE TABLE / PRIMARY KEY will create implicit index "books_id_pkey" for table "new_books" CREATE TABLE postgres=# postgres=# drop table new_books; DROP TABLE postgres=#                     Related examples in the same category 1.  Implicit index is created when creating a table for a primary key 2.  Primary keys constrains more than one column 3.  Indicate one column as the primary key column 4.  PRIMARY KEY will create implicit index 5.  Primary key with check option 6.  Use sequence value as a primary key

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