DIGITS scalar function
Read syntax diagramSkip visual syntax diagram>>-DIGITS--(--expression--)------------------------------------><
The schema is SYSIBM.
The DIGITS function returns a character-string representation of a number.
The argument must be an expression that returns a value of type SMALLINT, INTEGER, BIGINT or DECIMAL.
If the argument can be null, the result can be null; if the argument is null, the result is the null value.
The result of the function is a fixed-length character string representing the absolute value of the argument without regard to its scale. The result does not include a sign or a decimal character. Instead, it consists exclusively of digits, including, if necessary, leading zeros to fill out the string. The length of the string is:
* 5 if the argument is a small integer
* 10 if the argument is a large integer
* 19 if the argument is a big integer
* p if the argument is a decimal number with a precision of p.
* Assume that a table called TABLEX contains an INTEGER column called INTCOL containing 10-digit numbers. List all distinct four digit combinations of the first four digits contained in column INTCOL.
SELECT DISTINCT SUBSTR(DIGITS(INTCOL),1,4)
* Assume that COLUMNX has the DECIMAL(6,2) data type, and that one of its values is -6.28. Then, for this value:
returns the value '000628'.