SQL Data Types

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MSSQL and SQL99/92 Types

Here is a list of SQL Datatypes

MSSQL Data Type SQL99/92 Data Type Desc
bigint none int between -9,223,372,036,854,775,807 and 9,223,372,036,854,775,807
binary binary fixed length binary value up to 8000 bytes
bit bit 1 or 0
char(n) character fixed length character data up to 8000 characters
cursor none a cursor
datetime none datetime from 1753-01-01 00:00:00 through 9999-12-31 23:59:59
decimal(p,s) decimal decimal up to 83 digits
float float floating point number from -1.79E + 308 to 1.79E + 308
image none binary data up to 2,147,483,647 bytes in length
int integer integer between -2,147,483,648 and 2,147,483,648
money none between -922,337,203,685,477.5808 and 922,337,203,685,477.5808
nchar(n) national character fixed length Unicode data up to 4000 characters
ntext none Unicode text up to 1,073,741,823 characters in length
numeric(p,s) none same as decimal
nvarchar(n) national character varying varying length Unicode data up to 4000 characters
real none floating point numbers between -3.40E + 83 and 3.40E + 38
rowversion none a unique number within a database that is updated whenever a row is updated. used to be timestamp.
smalldatetime none datetime from 1753-01-01 00:00:00 through 2079-12-31 23:59:59
smallint smallint integers between -32768 and 32768
smallmoney none monetary values between -214748.3648 and 214748.3648
sql_variant none stores values of other types except text,ntext,rowversion and other variants
table none stores results set
text none large text passages up to 2,147,483,647 characters in length
tinyint none int up to 255
unique-identifier none value that is unique across all databases and servers
varbinary binary varying binary value up to 8000 bytes in size
varchar(n) character varying text characters up to 8000 in length

.NET Data Types