The function FIRST returns the first value of items in a group. Without a
GROUP BY clause it will return the first row of the SELECT. The value is
nondeterministic if the values in a group are differently because there is no
warranty of the row order.
SQL Syntax:
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FIRST( expression ) |
Parameters:
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expression
A expression of any data type without a aggregate function.
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Return Type:
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the same as the expression. |
Examples:
SELECT FIRST( price ) FROM mytable
SELECT FIRST( price ) FROM mytable
SELECT FIRST( price ) FROM mytable t GROUP BY t.name
see also:
LAST
SQL Aggregate Functions
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