Aliases of Built-in Data Types

BIGINT
- It is as same as NUMBER(19,0).
- Refer to NUMBER.
BINARY
- Refer to BINARY.
BINARY VARYING
- Refer to BINARY VARYING.
BINARY LONG VARYING
- Refer to BINARY LONG VARYING.
BOOLEAN
- Refer to BOOLEAN.
CHAR
- It is as same as CHARACTER.
- Refer to CHARACTER.
CHARACTER
- Refer to CHARACTER.
CHARACTER VARYING
- Refer to CHARACTER VARYING.
CHARACTER LONG VARYING
- Refer to CHARACTER LONG VARYING.
DATE
- Refer to DATE.
DEC
- It is as same as NUMERIC.
- Refer to NUMERIC.
DECIMAL
- It is as same as NUMERIC.
- Refer to NUMERIC.
DOUBLE
- It is as same as FLOAT(53).
- Refer to FLOAT.
DOUBLE PRECISION
- It is as same as FLOAT(53).
- Refer to FLOAT.
FLOAT
- Refer to FLOAT.
FLOAT4
- It is as same as FLOAT(24).
- Refer to FLOAT.
FLOAT8
- It is as same as FLOAT(53).
- Refer to FLOAT.
INT
- It is as same as NUMBER(10,0).
- Refer to NUMBER.
INT2
- It is as same as NUMBER(5,0).
- Refer to NUMBER.
INT4
- It is as same as NUMBER(10,0).
- Refer to NUMBER.
INT8
- It is as same as NUMBER(19,0).
- Refer to NUMBER.
INTEGER
- It is as same as NUMBER(10,0).
- Refer to NUMBER.
INTERVAL
- Refer to INTERVAL.
LONG BINARY VARYING
- It is as same as BINARY LONG VARYING.
- Refer to BINARY LONG VARYING.
LONG CHAR VARYING
- It is as same as CHARACTER LONG VARYING.
- Refer to CHARACTER LONG VARYING.
LONG CHARACTER VARYING
- It is as same as CHARACTER LONG VARYING.
- Refer to CHARACTER LONG VARYING.
LONG VARCHAR
- It is as same as CHARACTER LONG VARYING.
- Refer to CHARACTER LONG VARYING.
NATIVE_BIGINT
- Refer to NATIVE_BIGINT.
NATIVE_DOUBLE
- Refer to NATIVE_DOUBLE.
NATIVE_INTEGER
- Refer to NATIVE_INTEGER.
NATIVE_REAL
- Refer to NATIVE_REAL.
NATIVE_SMALLINT
- Refer to NATIVE_SMALLINT.
NUMBER
- Refer to NUMBER.
NUMERIC
- Refer to NUMERIC.
ROWID
- Refer to ROWID.
SMALLINT
- It is as same as NUMBER(5,0).
- Refer to NUMBER.
TIME
- Refer to TIME.
TIMESTAMP
- Refer to TIMESTAMP.
VARBINARY
- It is as same as BINARY VARYING.
- Refer to BINARY VARYING.
VARCHAR
- It is as same as CHARACTER VARYING.
- Refer to CHARACTER VARYING.
VARCHAR2
- It is as same as CHARACTER VARYING.
- Refer to CHARACTER VARYING.

BINARY

Syntax

BINARY [ (length) ]

Syntax Rules and Parameters

length: It is the binary string length.
- Range: 1 ~ 2000
- Default value: 1

Description

A fixed-length binary string is stored.
If the binary string length to be stored is shorter than the specified length,  X'00 ' is stored in the remaining part.
• Storage size: Bytes of the length value

For More Information

Refer to the followings.

BINARY VARYING

Syntax

BINARY VARYING (length)

Syntax Rules and Parameters

length: It is the maximum length of binary string.
- Range: 1 ~ 4000

Description

The variable-length binary string is stored.

• Storage size: Bytes of the binary string to be stored
• Alias names: VARBINARY

For More Information

Refer to the followings.

BINARY LONG VARYING

Syntax

BINARY LONG VARYING

Description

The value of the long variable binary string is stored.
• Maximum storage size: 100 megabytes
• Storage size: Bytes of the binary string to be stored
• Alias names: LONG BINARY VARYING, LONG VARBINARY

It can not be used as a column of the key, so there are limitations as follows.
• It can not be used as a key column of an index.
• It can not be used as the expression of ORDER BY clause. 
• It can not be used as the expression of GROUP BY clause.
• It can not be used as the expression of DISTINCT clause.
• It can not be used as the expression of UNION, INTERSECT, EXCEPT clauses.

For More Information

Refer to the followings.

BOOLEAN

Syntax

BOOLEAN

Description

TRUE or FALSE is stored.
• Storage size: 1 byte.

CHARACTER

Syntax

CHARACTER [ (length [ CHARACTERS | OCTETS | CHAR | BYTE ] ) ]

Syntax Rules and Parameters

length: It is the string length.
- Range: 1 ~ 2000
- Default value: 1

[ CHARACTERS | OCTETS | CHAR | BYTE ]: It is unit of length.
- CHARACTERS
  - The number of characters
  - CHAR is as same as CHARACTERS.
- OCTETS
  - The number of bytes
  - BYTE is as same as OCTETS.
- If omitted, the default is the property value of CHAR_LENGTH_UNITS which is set when creating database.

Description

A fixed-length string is stored.
If the length of the string to be stored is shorter than the specified length, white spaces are stored in the remaining part.

Storage size: Bytes of the length value
Alias name: CHAR

For More Information

Refer to the followings.

CHARACTER VARYING

Syntax

CHARACTER VARYING ( length [ CHARACTERS | OCTETS | CHAR | BYTE ] )

Syntax Rules and Parameters

length: It is the string length.
- Range: 1 ~ 4000

[ CHARACTERS | OCTETS | CHAR | BYTE ]: It is unit of length.
- CHARACTERS
  - The number of characters
  - CHAR is as same as CHARACTERS.
- OCTETS
  - The number of bytes
  - BYTE is as same as OCTETS.
- If omitted, the default is the property value of CHAR_LENGTH_UNITS which is set when creating database.

Description

The variable-length string is stored.

• Storage size: Bytes of the string to be stored
• Alias names: VARCHAR, VARCHAR2

For More Information

Refer to the followings.

CHARACTER LONG VARYING

Syntax

CHARACTER LONG VARYING

Description

The value of the long variable-length string is stored.

• Maximum storage size: 100 megabytes
• Storage size: Bytes of the string to be stored 
• Alias names: LONG CHARACTER VARYING, LONG CHAR VARYING, LONG VARCHAR

It can not be used as a column of the key, so there are limitations as follows.

• It can not be used as a key column of an index.
• It can not be used as the expression of ORDER BY clause. 
• It can not be used as the expression of GROUP BY clause.
• It can not be used as the expression of DISTINCT clause.
• It can not be used as the expression of UNION, INTERSECT, EXCEPT clauses.

For More Information

Refer to the followings.

DATE

Syntax

DATE

Description

It is the date type including YEAR, MONTH, DAY, HOUR, MINUTE and SECOND (excluding fractional seconds).
• Value range: Date value between '4714-11-24 BC' and '9999-12-31 AD' 
• Storage size: 8 bytes

For More Information

Refer to the followings.

FLOAT

Syntax

FLOAT[ ( precision ) ]

Syntax Rules and Parameters

precision: It is the binary precision of significant digits.
- Precision range: 1 ~ 126
- Default value: 126

Description

The floating point value with a binary precision is stored.

Exponential range: 1E-130 ~ 1E+125
Storage size: (number of digits in integer part + 1) / 2 + (number of digits in fractional part + 1) / 2 + 1 (exponent, sign)

It has a binary precision value unlike NUMBER, NUMERIC types.

Alias names: REAL = FLOAT(24), DOUBLE = FLOAT(53), DOUBLE PRECISION = FLOAT(53), FLOAT4 = FLOAT(24), FLOAT8 = FLOAT(53).

For More Information

Refer to the followings.

INTERVAL

Syntax

<interval_type> ::=
      INTERVAL YEAR [ ( leading_precision ) ] 
    | INTERVAL MONTH [ ( leading_precision ) ] 
    | INTERVAL DAY [ ( leading_precision ) ] 
    | INTERVAL HOUR [ ( leading_precision ) ] 
    | INTERVAL MINUTE [ ( leading_precision ) ]
    | INTERVAL SECOND [ ( leading_precision  [ , fractional_seconds_precision ] ) ]
    | INTERVAL YEAR [ ( leading_precision ) ] TO MONTH
    | INTERVAL DAY [ ( leading_precision ) ] TO HOUR
    | INTERVAL DAY [ ( leading_precision ) ] TO MINUTE
    | INTERVAL DAY [ ( leading_precision ) ] TO SECOND [ ( fractional_seconds_precision ) ]
    | INTERVAL HOUR [ ( leading_precision ) ] TO MINUTE
    | INTERVAL HOUR [ ( leading_precision ) ] TO SECOND [ ( fractional_seconds_precision ) ]
    | INTERVAL MINUTE [ ( leading_precision ) ] TO SECOND [ ( fractional_seconds_precision ) ]

Syntax Rules and Parameters

INTERVAL YEAR [ ( leading_precision ) ]: A period of YEAR is stored.
- leading_precision
  - The number of digits in YEAR
  - Value range: 2 ~ 6
  - Default value: 2

INTERVAL MONTH [ ( leading_precision ) ]: A period of MONTH is stored.
- leading_precision
  - The number of digits in MONTH
  - Value range: 2 ~ 6
  - Default value: 2

INTERVAL YEAR [ ( leading_precision ) ] TO MONTH: A period of YEAR and MONTH is stored.
- leading_precision
  - The number of digits in YEAR
  - Value range: 2 ~ 6
  - Default value: 2

INTERVAL DAY [ ( leading_precision ) ]: A period of DAY is stored.
- leading_precision
  - The number of digits in DAY
  - Value range: 2 ~ 6
  - Default value: 2

INTERVAL HOUR [ ( leading_precision ) ]: A period of HOUR is stored.
- leading_precision
  - The number of digits in HOUR
  - Value range: 2 ~ 6
  - Default value: 2

INTERVAL MINUTE [ ( leading_precision ) ]: A period of MINUTE is stored.
- leading_precision
  - The number of digits in MINUTE
  - Value range: 2 ~ 6
  - Default value: 2

INTERVAL SECOND [ ( leading_precision [ , fractional_seconds_precision ] ) ]: A period of SECOND is stored.
- leading_precision
  - The number of digits in SECOND
  - Value range: 2 ~ 6
  - Default value: 2
- fractional_seconds_precision
  - The number of digits in fractional seconds
  - Value range: 0 ~ 6
  - Default value: 6

INTERVAL DAY [ ( leading_precision ) ] TO HOUR: A period of DAY and HOUR is stored.
- leading_precision
  - The number of digits in DAY
  - Value range: 2 ~ 6
  - Default value: 2

INTERVAL DAY [ ( leading_precision ) ] TO MINUTE: A period of DAY, HOUR, and MINUTE is stored.
- leading_precision
  - The number of digits in DAY
  - Value range: 2 ~ 6
  - Default value: 2

INTERVAL DAY [ ( leading_precision ) ] TO SECOND [ ( fractional_seconds_precision ) ]: A period of DAY, HOUR, MINUTE, and SECOND is stored.
- leading_precision
  - The number of digits in DAY
  - Value range: 2 ~ 6
  - Default value: 2
- fractional_seconds_precision
  - The number of digits in fractional seconds
  - Value range: 0 ~ 6
  - Default value: 6

INTERVAL HOUR [ ( leading_precision ) ] TO MINUTE: A period of HOUR and MINUTE is stored.
- leading_precision
  - The number of digits in HOUR
  - Value range: 2 ~ 6
  - Default value: 2

INTERVAL HOUR [ ( leading_precision ) ] TO SECOND [ ( fractional_seconds_precision ) ]: A period of HOUR, MINUTE and SECOND is stored.
- leading_precision
  - The number of digits in HOUR
  - Value range: 2 ~ 6
  - Default value: 2
- fractional_seconds_precision
  - The number of digits in fractional seconds
  - Value range: 0 ~ 6
  - Default value: 6

INTERVAL MINUTE [ ( leading_precision ) ] TO SECOND [ ( fractional_seconds_precision ) ]: A period of MINUTE and SECOND is stored.
- leading_precision
  - The number of digits in MINUTE
  - Value range: 2 ~ 6
  - Default value: 2
- fractional_seconds_precision
  - The number of digits in fractional seconds
  - Value range: 0 ~ 6
  - Default value: 6

Description

INTERVAL types are classified into YEAR TO MONTH family type and DAY TO SECOND family type depending on the range of value representation as follows.

YEAR TO MONTH family type: Its storage size is 8 bytes.
- INTERVAL YEAR
- INTERVAL MONTH
- INTERVAL YEAR TO MONTH

DAY TO SECOND family type: Its storage size is 16 bytes.
- INTERVAL DAY
- INTERVAL HOUR
- INTERVAL MINUTE
- INTERVAL SECOND
- INTERVAL DAY TO HOUR
- INTERVAL DAY TO MINUTE
- INTERVAL DAY TO SECOND
- INTERVAL HOUR TO MINUTE
- INTERVAL HOUR TO SECOND
- INTERVAL MINUTE TO SECOND

If the number which is bigger than number of the specified digits is in the field to which the leading_precision is specified, then an error is returned.
If the number which is bigger than number of the specified digits is in the field to which the fractional_seconds_precision is specified, it is rounded off.

Precisions and value range of the second or later field in INTERVAL * TO *
Field	Precision	Value range
MONTH	2	0 ~ 11
HOUR	2	0 ~ 23
MINUTE	2	0 ~ 59
SECOND (interger part)	2	0 ~ 59

For More Information

Refer to Interval Literals.

NATIVE_BIGINT

Syntax

NATIVE_BIGINT

Description

Signed 8-byte integer is stored.

It is as same as long long data type of C language (8 bytes integer).

Value range: -9,223,372,036,854,775,808 ~ 9,223,372,036,854,775,807
Storage size: 8 bytes

NATIVE_DOUBLE

Syntax

NATIVE_DOUBLE

Description

Double precision floating-point number (8 bytes) is stored.

It is as same as double data type of C language.

Exponential range: 1E-307 ~ 1E+308
Storage size: 8 bytes

NATIVE_INTEGER

Syntax

NATIVE_INTEGER

Description

Signed 4 byte integer is stored.

It is as same as integer data type of C language (4 bytes).

Value range: -2,147,483,648 ~ +2,147,483,647
Storage size: 4 bytes

NATIVE_REAL

Syntax

NATIVE_REAL

Description

Single precision floating-point number (4 bytes) is stored.

It is as same as float data type of C language.

Exponential range: 1E-37 ~ 1E+37
Storage size: 4 bytes

NATIVE_SMALLINT

Syntax

NATIVE_SMALLINT

Description

Signed 2 byte integer is stored.

It is as same as short data type of C language.

Value range: -32,768 ~ 32,767
Storage size: 2 bytes

NUMBER

Syntax

NUMBER  [ ( precision [ , scale ] ) ]

Syntax Rules and Parameters

NUMBER: A floating point number without a precision and scale is stored.
- The range of significant digits: 38
- Exponential range: 1E-130 ~ 1E+125
- It is as same as FLOAT (126).

NUMBER(precision): The integer with significant digits of precision is stored.
- Precision range: 1 ~ 38
- The scale value: 0
- It has a decimal precision value unlike FLOAT type.
- It is as same as NUMBER(precision, 0), NUMERIC(precision, 0).

NUMBER(precision, scale): A fixed point number with precision and scale is stored.
- Precision range: 1 ~ 38
- Scale range: -84 ~ 127
- It has a decimal precision value unlike FLOAT type.
- It is as same as NUMERIC (precision,scale).
- Alias names: SMALLINT = NUMBER(5,0), INTEGER = NUMBER(10,0), BIGINT = NUMBER(19,0), INT2 = NUMBER(5,0), INT4 = NUMBER(10,0), INT8 = NUMBER(19,0)

Description

NUMBER type is similar to NUMERIC type, but if both the precision and scale are omitted, NUMBER type stores the floating point number whose precision and scale are not specified.

NUMBER without precision, scale: Floating-point number
NUMERIC without precision, scale: The fixed point number of NUMERIC(38, 0)
Storage size: (number of digits in integer part + 1) / 2 + (number of digits in fractional part + 1) / 2 + 1 (exponent, sign)

For More Information

Refer to the followings.

NUMERIC

Syntax

NUMERIC  [ ( precision [ , scale ] ) ]

Syntax Rules and Parameters

precision: It is the decimal precision of significant digits.
- precision range: 1 ~ 38
- Default value: 38

scale: It is the decimal point range.
- scale range: -84 ~ 127
- Default value: 0

Description

A fixed point number with precision and scale is stored.

If the precision and scale are omitted, it means as follows.

NUMERIC = NUMERIC(38,0)
NUMERIC(p) = NUMERIC(p,0)

NUMBER type is similar to NUMERIC type, but if both the precision and scale are omitted, NUMBER type stores the floating-point number whose precision and scale is not specified.

NUMBER without precision, scale: Floating point number
NUMERIC without precision, scale: Fixed point number of NUMERIC(38,0)
Storage size: (number of digits in integer part + 1) / 2 + (number of digits in fractional part + 1) / 2 + 1 (exponent, sign)

For More Information

Refer to the followings.

ROWID

Syntax

ROWID

Description

A record identifier (ROWID) is stored.

A record identifier (ROWID) is the identification information of each record in database.

When querying the ROWID pseudo column, each record identifier (ROWID) is obtained. This ROWID pseudo column has the ROWID data type information.

ROWID type consists of the followings in a stand-alone system.
• OBJECT_ID 
• TABLESPACE_ID 
• PAGE_ID 
• OFFSET within PAGE

ROWID type consists of the followings in a cluster system.
• GRID_BLOCK_SEQUENCE
• GRID_BLOCK_ID
• MEMBER_ID
• SHARD_ID

ROWID is stored in the base 64 value, which can include A ~ Z, a ~ z, 0 ~ 9, +, /.
Each component information of ROWID is obtained using ROWID-related functions.

• Storage size: 16 bytes

For More Information

Refer to the followings.

TIME

Syntax

TIME [ ( fractional_seconds_precision ) ] [ WITH TIME ZONE | WITHOUT TIME ZONE ]

Syntax Rules and Parameters

fractional_seconds_precision: It is the number of significant digits in fractional seconds.
- fractional_seconds_precision range: 0 ~ 6
- Default value: 6

[ WITH TIME ZONE | WITHOUT TIME ZONE ]: It specifies whether to store TIME ZONE value.
- WITH TIME ZONE: The time which includes time zone
- WITHOUT TIME ZONE: The time which does not include time zone
- Default value: WITHOUT TIME ZONE

Description

The time which includes HOUR, MINUTE and SECOND is stored.

Storage size
- TIME WITHOUT TIME ZONE: 8 bytes
- TIME WITH TIME ZONE: 12 bytes

For More Information

Refer to the followings.

TIMESTAMP

Syntax

TIMESTAMP [ ( fractional_seconds_precision ) ] [ WITH TIME ZONE | WITHOUT TIME ZONE ]

Syntax Rules and Parameters

fractional_seconds_precision: It is the number of significant digits in the fractional seconds.
- fractional_seconds_precision range: 0 ~ 6
- Default value: 6

[ WITH TIME ZONE | WITHOUT TIME ZONE ]: It specifies whether to store TIME ZONE value.
- WITH TIME ZONE: The time which includes time zone.
- WITHOUT TIME ZONE: The time which does not include time zone.
- Default value: WITHOUT TIME ZONE

Description

The time which includes YEAR, MONTH, DATE, HOUR, MINUTE and SECOND is stored.

Storage size
- TIMESTAMP WITHOUT TIME ZONE: 8 bytes
- TIMESTAMP WITH TIME ZONE: 12 bytes

For More Information

Refer to the followings.