Oracleto_char () function usage

This article briefly introduces the usage of oracleto_char () function. If you need to learn it, please refer to it.

This article briefly introduces the usage of oracle to_char () function. If you need to learn it, please refer to it.

This article briefly introduces the usage of oracle to_char () function. If you need to learn it, please refer to it.

Oracle/plsql of the TO_CHAR function, which converts a number or date to a string.

The syntax of the to_char function is:
To_char (value, [format_mask], [nls_language])

The value can be a number or date and will be converted into a string.

Format_mask is optional. This is to convert the format to a string value.

NLS_LANGUAGE is optional. This is the language of the interest-free review loan plan, which is used to convert to a string value.

Applies:

The Code is as follows:
Oracle 8i, Oracle 9i, Oracle 10g, Oracle 11g

Instance

The Code is as follows:
To_char (1210.73, '192. 9') wocould return '192. 7' To_char (1210.73, '20140901') wocould return '20160301' To_char (1210.73, '$9,999.00') wocould return '$1,210.73' To_char (21, '20140901') wocould return '20160901'

Date instance

The following is a valid parameter list. The to_char function is used to convert a string to a date. These parameters can be used in multiple combinations.

Parameter	Explanation
YEAR	Year, spelled out
YYYY	4-digit year
YYY YY Y	Last 3, 2, or 1 digit (s) of year.
IYY IY I	Last 3, 2, or 1 digit (s) of ISO year.
IYYY	4-digit year based on the ISO standard
Q	Quarter of year (1, 2, 3, 4; JAN-MAR = 1 ).
MM	Month (01-12; JAN = 01 ).
MON	Abbreviated name of month.
MONTH	Name of month, padded with blanks to length of 9 characters.
RM	Roman numeral month (I-XII; JAN = I ).
WW	Week of year (1-53) where week 1 starts on the first day of the year and continues to the seventh day of the year.
W	Week of month (1-5) where week 1 starts on the first day of the month and ends on the seventh.
IW	Week of year (1-52 or 1-53) based on the ISO standard.
D	Day of week (1-7 ).
DAY	Name of day.
DD	Day of month (1-31 ).
DDD	Day of year (1-366 ).
DY	Abbreviated name of day.
J	Julian day; the number of days since January 1, 4712 BC.
HH	Hour of day (1-12 ).
HH12	Hour of day (1-12 ).
HH24	Hour of day (0-23 ).
MI	Minute (0-59 ).
SS	Second (0-59 ).
SSSSS	Seconds past midnight (0-86399 ).
FF	Fractional seconds.

The following are date examples for the to_char function.

The Code is as follows:
To_char (sysdate, 'yyyy/mm/dd'); wocould return '2017/09' To_char (sysdate, 'month DD, yyyy'); wocould return 'july 09,200 3' To_char (sysdate, 'fmmonth DD, yyyy'); wocould return 'july 9, 100' To_char (sysdate, 'mon DDth, yyyy'); wocould return 'Jul 09TH, 100' To_char (sysdate, 'fmmon DDth, yyyy'); wocould return 'Jul 9TH, 100' To_char (sysdate, 'fmmon ddth, yyyy'); wocould return 'Jul 9th, 100'

In some examples, the format_mask parameter starts with "FM. This means that zero and space values are blocked. This can be seen in the following example.

The Code is as follows:
To_char (sysdate, 'fmmonth DD, yyyy'); wocould return 'july 9, 100' To_char (sysdate, 'fmmon DDth, yyyy'); wocould return 'Jul 9TH, 100' To_char (sysdate, 'fmmon ddth, yyyy'); wocould return 'Jul 9th, 100'