#612 Update Oracle TypeMap

[jonnybee]

Updated Oracle typemap as per Oracle documentation:
https://docs.oracle.com/cd/B28359_01/server.111/b28320/limits001.htm#i287903

CHAR - max 2000
NCHAR - max 2000
VARCHAR2 - max 4000
NVARCHAR2 - max 4000
RAW - max 2000

[tommarien]

@jonnybee could you add tests for the typemap, you can make OracleTypeMap public if needed ;)

Thanks

[jonnybee]

Unit tests for OracleTypeMap has been added to PR.

[tommarien]

@jonnybee Thanks, just a remark though, don't test the constants test the typemapping itself, does not matter if the constants have the correct value. What matters if that for certain criteria the typemapping switches accordingly ;)

[tommarien]

@jonnybee Also wondering about RAW(max) should it not be just

Raw up until 2000 bytes
BLOB for beyond ?

[jonnybee]

Yes, you are correct. RAW(MAX) is not a valid datatype.
RAW is up to 2000- and if more then BLOB.

I have updated the typemap and unit tests.

[tommarien]

Thanks