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CREATE TABLE: It is used to specify new relation by giving the name and specifying each of its
attributes and constraints, as well. ALTER TABLE: This command is generally used to add/delete
a new field, modify an existing field, and/or constraints of a relation, as well. DROP TABLE: It is
used to delete a relation which is not needed any longer. For instance, ifyou wan to delete a
relation use the command similar to DROP TABLE

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CREATE TABLE It is used to specify new relation by giving t.pdf

  • 1. CREATE TABLE: It is used to specify new relation by giving the name and specifying each of its attributes and constraints, as well. ALTER TABLE: This command is generally used to add/delete a new field, modify an existing field, and/or constraints of a relation, as well. DROP TABLE: It is used to delete a relation which is not needed any longer. For instance, ifyou wan to delete a relation use the command similar to DROP TABLE