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Tuesday, August 14, 2012

Tell me difference between VARCHAR and NVARCHAR ????

Tell me difference between varchar and nvarchar ????

4 comments :

Anonymous said...

Character Data Type

Varchar - Non-Unicode Data
NVarchar - Unicode Data

Maximum Length

Varchar - 8,000 bytes
NVarchar - 4,000 bytes

ajay said...

ISO synonyms for nvarchar are national char varying and national character varying.

Er. Rohit Prakash said...

Differences :

1 Character Data Type

Varchar - Non-Unicode Data
NVarchar - Unicode Data

2 Character Size

Varchar - 1 byte
NVarchar - 2 bytes

3 Maximum Length

Varchar - 8,000 bytes
NVarchar - 4,000 bytes

4 Storage Size

Varchar - Actual Length (in bytes)
NVarchar - 2 times Actual Length (in bytes)

Anonymous said...

thanks Rohit for nice information.