Sunday, 26 January 2014

Explain the following: a.) BLOB datatype. b.) DML.

a.) BLOB datatype.

- It is a data type with varying length binary string, used to store two gigabytes memory.
- For BLOB, the length needs to be specified in bytes.

b.) DML.

- DML - it is also termed as Data Manipulation Language (DML).
- It is used to access and manipulate data in the existing objects.
- DML statements are insert, select, update and delete.

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