Snippet Name: CAST
Description: CAST converts one built-in datatype or collection-typed value into another built-in datatype or collection-typed value.
You can cast an unnamed operand (such as a date or the result set of a subquery) or a named collection (such as a varray or a nested table) into a type-compatible datatype or named collection. The type_name must be the name of a built-in datatype or collection type and the operand must be a built-in datatype or must evaluate to a collection value.
Also see: » Add PSOUG Search to SQL Developer
» Converting Rows to Columns
» UNISTR
» TRANSLATE
» TO_YMINTERVAL
» TO_TIMESTAMP_TZ
» TO_TIMESTAMP
» TO_SINGLE_BYTE
» TO_NUMBER
» TO_NCLOB
» TO_NCHAR
» TO_MULTI_BYTE
» TO_LOB
» TO_DSINTERVAL
» TO_DATE
» TO_CLOB
» TO_CHAR
» TO_BINARY_FLOAT
» TO_BINARY_DOUBLE
» TIMESTAMP_TO_SCN
» SCN_TO_TIMESTAMP
» ROWIDTONCHAR
» ROWIDTOCHAR
» REFTOHEX
» RAWTONHEX
» RAWTOHEX
» NUMTOYMINTERVAL
» NUMTODSINTERVAL
» HEXTORAW
» DECOMPOSE
Comment: (none)
Language: PL/SQL
Highlight Mode: PLSQL
Last Modified: March 05th, 2009
|
CAST(<string_or_column> AS <DATATYPE>)
-- The following examples use the CAST function
-- with scalar datatypes:
SELECT CAST('22-OCT-1997' AS TIMESTAMP WITH LOCAL TIME ZONE)
FROM dual;
SELECT product_id,
CAST(ad_sourcetext AS VARCHAR2(30))
FROM print_media;
-- This example casts a subquery:
SELECT s.custno, s.name,
CAST(MULTISET(SELECT ca.street_address,
ca.postal_code,
ca.city,
ca.state_province,
ca.country_id
FROM cust_address ca
WHERE s.custno = ca.custno)
AS address_book_t)
FROM cust_short s;
|