ALTER TYPE Syntax | Teradata Vantage - ALTER TYPE Syntax - Analytics Database - Teradata Vantage

SQL Data Definition Language Syntax and Examples

Deployment
VantageCloud
VantageCore
Edition
Enterprise
IntelliFlex
VMware
Product
Analytics Database
Teradata Vantage
Release Number
17.20
Published
June 2022
Language
English (United States)
Last Update
2024-10-04
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lifecycle
latest
Product Category
Teradata Vantage™
ALTER TYPE [SYSUDTLIB.] UDT_name {
  [ ADD | DROP ] { attribute_clause | method_clause | specific_method_clause } |
  COMPILE [ONLY]
} [;]
attribute_clause
ATTRIBUTE attribute_specification [,...]
method_clause
[ INSTANCE | CONSTRUCTOR ] METHOD [SYSUDTLIB.] method_name
  [ ( data_type_or_UDT_name [,...] ) ]
  { returns_clause |
    LANGUAGE { C | CPP } |
    PARAMETER STYLE { SQL | TD_GENERAL } |
    [NOT] DETERMINISTIC |
    NO SQL
  }
specific_method_clause
SPECIFIC METHOD [SYSUDTLIB.] specific_method_name
  [ ( data_type_or_UDT_name [,...] ) ]
  FOR [SYSUDTLIB.] UDT_name
returns_clause
RETURNS data_type_or_UDT_name
  CAST FROM data_type_or_UDT_name
attribute_specification
attribute_name data_type_or_UDT_name
data_type_or_UDT_name
{ data_type | [SYSUDTLIB.] UDT_name }
data_type
{ INTEGER | SMALLINT | BIGINT | BYTEINT | DATE |

  { TIME | TIMESTAMP } [ (fractional_seconds_precision) ] [WITH TIME ZONE] |

  INTERVAL YEAR [(precision)] [TO MONTH] |

  INTERVAL MONTH [(precision)] |

  INTERVAL DAY [(precision)]
    [TO { HOUR | MINUTE | SECOND [(fractional_seconds_precision)] }] |

  INTERVAL HOUR [(precision)]
    [TO { MINUTE | SECOND [(fractional_seconds_precision)] }] |

  INTERVAL MINUTE [(precision)] [TO SECOND [(fractional_seconds_precision)]] |

  INTERVAL SECOND [ ( precision [, fractional_seconds_precision ] ) |

  PERIOD (DATE) |

  PERIOD ( { TIME | TIMESTAMP } [(precision)] [WITH TIME ZONE] ) |

  REAL |

  DOUBLE PRECISION |

  FLOAT [ (integer) ] |

  NUMBER [ ( { integer | *} [, integer]... ) ] |

  { DECIMAL | NUMERIC } [ ( integer [, integer]... ) ] |

  { CHAR | BYTE | GRAPHIC } [ (integer) ] |

  { VARCHAR | CHAR VARYING | VARBYTE | VARGRAPHIC } [ (integer) ] |

  LONG VARCHAR |

  LONG VARGRAPHIC |

  { BINARY LARGE OBJECT | BLOB | CHARACTER LARGE OBJECT | CLOB }
    ( integer [ G | K | M ] ) |

  { XML | XMLTYPE } |

  JSON [ ( integer ) ] [ CHARACTER SET { UNICODE | LATIN } ] |

  [SYSUDTLIB.] { UDT_name | ST_Geometry | MBR | ARRAY_name | VARRAY_name }
}