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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 · TO_CHAR( input_value, [format_mask], [nls_parameter] ) Parameters. 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.
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.
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.
10 kwi 2005 · It may be better to format the telephone numbers into pure numbers first and strip out all the spaces, '-', '?' etc. first and then use the substr method, Tom suggests. That way all the telephone numbers will be in a similar initial format.
TO_CHAR (character) 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.
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 ...
