Returns a comma-delimited list of values.
LIST( [ DISTINCT ] string-expression [ , delimiter-string ] )
string-expression A string expression, usually a column name. For each row in the column, the value is added to a comma-separated list. When DISTINCT is specified, only unique values are added.
delimiter-string A delimiter string for the list items. The default setting is a comma. There is no delimiter if a value of NULL or an empty string is supplied. The delimiter-string must be a constant.
NULL values are not added to the list. LIST ( X ) returns the concatenation (with delimiters) of all the non-NULL values of X for each row in the group. If there does not exist at least one row in the group with a definite X-value, then LIST( X ) returns the empty string.
A LIST function cannot be used as a window function, but it can be used as input to a window function.
SQL/2003 Vendor extension.
The following statement returns all street addresses from the Employees table.
SELECT LIST( Street ) FROM Employees; |
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