1.PRIMARY
2.UNIQUE
3.ALTERNATE
4.FOREIGN
1.view
2.relation
3.Query
4.Query results
1.DROP FROM user where id =1
2.UPDATE FROM user where id =1
3.REMOVE FROM user where id =1
4.DELETE FROM user where id =1
1.to change in table data
2.to change in table structure
3. delete rows from the table
4. delete new recored in the table
1.row data
2.column data
3.Both
4.None
1.ALTER TABLE Table_Name ADD Column_Name
2.Update TABLE TableName ADD COLUMN ColumnName
3.MODIFY TABLE TableName ADD ColumnName
4.MODIFY TABLE TableName ADD COLUMN ColumnName
1.rows can be modified according to criteria only.
2.rows cannot be copied in mass from one table to another only.
3.rows can either be inserted into a table one at a time or in groups.
4.rows can be inserted into a table only one at a time only
1.To define the data structures
2.To specify the syntax and semantics of SQL data definition language
3.To specify the syntax and semantics of SQL manipulation language
4.All of the above
1.add row
2.ADD
3.APPEND
4.INSERT
1.update TABLE Table_Name DROP Column_Name
2.MODIFY TABLE Table_Name DROP COLUMN Column_Name
3. ALTER TABLE TableName DROP Column_Name
4.ALTER TABLE TableName DROP COLUMN Column_Name