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SQL-92
Guide and Reference


Data Types

SQL-92 CREATE TABLE statements specify data types for each column in the tables they define. This section describes the data types SQL supports for table columns.

There are several categories of SQL data types:

NOTE: All the data types can store null values. A null value indicates that the value is not known and is distinct from all non-null values.

This is the syntax for a data type:

SYNTAX
char_data_type | exact_numeric_data_type | approx_numeric_data_type
 | date_time_data_type | bit_string_data_type 


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