Oracle Queries
You can execute many queries in oracle database such as insert, update, delete, alter table, drop, create and select.
1) Oracle Select Query
Oracle select query is used to fetch records from database. For example:
2) Oracle Insert Query
Oracle insert query is used to insert records into table. For example:
3) Oracle Update Query
Oracle update query is used to update records of a table. For example:
4) Oracle Delete Query
Oracle update query is used to delete records of a table from database. For example:
5) Oracle Truncate Query
Oracle update query is used to truncate or remove records of a table. It doesn’t remove structure. For example:
6) Oracle Drop Query
Oracle drop query is used to drop a table or view. It doesn’t have structure and data. For example:
7) Oracle Create Query
Oracle create query is used to create a table, view, sequence, procedure and function. For example:
8) Oracle Alter Query
Oracle alter query is used to add, modify, delete or drop colums of a table. Let’s see a query to add column in customers table: