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23 wrz 2015 · I use the TO_CHAR function to format number from 0001 to 9999, and to fit the column size (VARCHAR2(4)) where the value is inserted (even if value is > 9999). I use the function like this: TO_CHAR(n, 'FM0000')
1 cze 2023 · The parameters of the TO_CHAR function are: input_value (mandatory): This is the value to convert into a String type. This is the main input to the function, and this value can either be a DATE type or any of the Number types. format_mask (optional): This is the format that the input_value should be displayed as.
The syntax for the TO_CHAR function in Oracle/PLSQL is: TO_CHAR( value [, format_mask] [, nls_language] ) Parameters or Arguments value A number or date that will be converted to a string. format_mask Optional. This is the format that will be used to convert value to a string. nls_language Optional. This is the nls language used to convert ...
TO_CHAR (number) converts n to a value of VARCHAR2 data type, using the optional number format fmt. The value n can be of type NUMBER, BINARY_FLOAT, or BINARY_DOUBLE. If you omit fmt, then n is converted to a VARCHAR2 value exactly long enough to hold its significant digits.
Number Format Models. You can use number format models in the following functions: In the TO_CHAR function to translate a value of NUMBER, BINARY_FLOAT, or BINARY_DOUBLE data type to VARCHAR2 data type. In the TO_NUMBER function to translate a value of CHAR or VARCHAR2 data type to NUMBER data type.
This tutorial shows you how to use the Oracle TO_CHAR() function to convert a DATE or INTERVAL value to a string in a specified format.
The DAY format gives you the full spelling of the day, DY the three letter abbreviation and D the day-of-week number (1-7). select to_char(date'2018-01-01', 'DAY') full_name, to_char(date'2018-01-01', 'DY') abbreviation, to_char(date'2018-01-01', 'D') day_of_week from dual
