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Snippet Name: TO_CHAR

Description: Converts NCHAR, NVARCHAR2, CLOB, or NCLOB data to the database character set. The value returned is always VARCHAR2.

When you use this function to convert a character LOB into the database character set, if the LOB value to be converted is larger than the target type, then the database returns an error.

You can use this function in conjunction with any of the XML functions to generate a date in the database format rather than the XML Schema standard format.

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_BINARY_FLOAT
» TO_BINARY_DOUBLE
» TIMESTAMP_TO_SCN
» SCN_TO_TIMESTAMP
» ROWIDTONCHAR
» ROWIDTOCHAR
» REFTOHEX
» RAWTONHEX
» RAWTOHEX
» NUMTOYMINTERVAL
» NUMTODSINTERVAL
» HEXTORAW
» DECOMPOSE
» CONVERT

Comment: (none)

Language: PL/SQL
Highlight Mode: PLSQL
Last Modified: March 05th, 2009

TO_CHAR(<string_or_column>, <format>) RETURN VARCHAR2
 
-- The following example interprets a simple string as 
-- character data:
 
SELECT TO_CHAR('01110') FROM DUAL;
 
TO_CH
-----
01110
 
 
-- This example converts some CLOB data to the database 
-- character set:
 
SELECT TO_CHAR(ad_sourcetext) FROM print_media
      WHERE product_id = 2268;
 
TO_CHAR(AD_SOURCETEXT)
 
 
-- Convert NUMBER to HEX:
TO_CHAR(NUMBER) RETURN HEX
 
 
-- Convert NUMBER to CHARACTER:
SELECT TO_CHAR(123)
FROM dual;
 
 
-- An example from Tom Kyte showing formatting: 
SELECT TO_CHAR(dt, 'HH:MI AM') A,
       TO_CHAR(dt, 'FMHH:MI AM') B,
       TO_CHAR(dt, 'FMHHFM:MI AM') C
FROM (SELECT TO_DATE('09:01 am', 'HH:MI AM') dt FROM dual);


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