Writes all or part of the given byte array to the BLOB value that this Blob object represents and returns the number of bytes written. Writing starts at position pos in the BLOB value; len bytes from the given byte array are written. The array of bytes will overwrite the existing bytes in the Blob object starting at the position pos. If the end of the Blob value is reached while writing the array of bytes, then the length of the Blob value will be increased to accomodate the extra bytes.

Note: If the value specified for pos is greater then the length+1 of the BLOB value then the behavior is undefined. Some JDBC drivers may throw a SQLException while other drivers may support this operation.

Parameters:

pos     the position in the BLOB object at which to start writing; the first position is 1

bytes     the array of bytes to be written to this BLOB object

offset     the offset into the array bytes at which to start reading the bytes to be set

len     the number of bytes to be written to the BLOB value from the array of bytes bytes

Returns: the number of bytes written

Exceptions:

SQLException if there is an error accessing the BLOB value or if pos is less than 1

SQLFeatureNotSupportedException if the JDBC driver does not support this method

`pos`		the position in the `BLOB` object at which to start writing; the first position is 1
`bytes`		the array of bytes to be written to this `BLOB` object
`offset`		the offset into the array `bytes` at which to start reading the bytes to be set
`len`		the number of bytes to be written to the `BLOB` value from the array of bytes `bytes`

`SQLException`		if there is an error accessing the `BLOB` value or if pos is less than 1
`SQLFeatureNotSupportedException`		if the JDBC driver does not support this method