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SQL DATA TYPES

Here’s a list of all the formal data types that ISO/IEC standard SQL recognizes. In addition to these, you may define additional data types that are derived from these.
Exact Numerics:
  • INTEGER
  • SMALLINT
  • BIGINT
  • NUMERIC
  • DECIMAL
Approximate Numerics:
  • REAL
  • DOUBLE PRECISION
  • FLOAT
  • DECFLOAT
Binary Strings:
  • BINARY
  • BINARY VARYING
  • BINARY LARGE OBJECT
Boolean:
  • BOOLEAN
Character Strings:
  • CHARACTER
  • CHARACTER VARYING (VARCHAR)
  • CHARACTER LARGE OBJECT
  • NATIONAL CHARACTER
  • NATIONAL CHARACTER VARYING
  • NATIONAL CHARACTER LARGE OBJECT
Datetimes:
  • DATE
  • TIME WITHOUT TIMEZONE
  • TIMESTAMP WITHOUT TIMEZONE
  • TIME WITH TIMEZONE
  • TIMESTAMP WITH TIMEZONE
Intervals:
  • INTERVAL DAY
  • INTERVAL YEAR
Collection Types:
  • ARRAY
  • MULTISET
Other Types:
  • ROW
  • XML
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