What is BLOB data type example?
- What Is A BLOB data type?
- When would you use a BLOB data type?
- What is BLOB datatype in SQL?
- How do you read BLOB data type?
What Is A BLOB data type?
A BLOB (binary large object) is a varying-length binary string that can be up to 2,147,483,647 characters long. Like other binary types, BLOB strings are not associated with a code page. In addition, BLOB strings do not hold character data.
When would you use a BLOB data type?
BLOB is used for storing binary data while Text is used to store large string. BLOB values are treated as binary strings (byte strings). They have no character set, and sorting and comparison are based on the numeric values of the bytes in column values.
What is BLOB datatype in SQL?
A BLOB, or Binary Large Object, is an SQL object data type, meaning it is a reference or pointer to an object. Typically a BLOB is a file, image, video, or other large object. In database systems, such as Oracle and SQL Server, a BLOB can hold as much as 4 gigabytes.
How do you read BLOB data type?
You can read BLOB value (binary data) from a table using the getBinaryStream() or, getBlob() methods of the ResultSet interface. These methods accept an integer value representing the index of the required column (or, a String value representing its name) and, reads CLOB data from it.
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