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what is difference between where clause and having clause?
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in 'where' clause every records filtered based on where
in 'having' is with aggregate records (group by functions )
| Is This Answer Correct ? | 44 Yes | 5 No |
Answer / narender sharma
Where clause is used to restrict rows but having clause is
used to restrict groups
| Is This Answer Correct ? | 28 Yes | 3 No |
Answer / anto padma sheela
1. Having clause is usually used with Group By clause
although it can be used without it too.
2. 'Having' is just an additional filter to 'Where' clause.
3. 'Where' clause applies to the individual rows
whereas 'Having' clause is used to test some condition on
the group(usually aggregate methods) rather than on
individual rows.
| Is This Answer Correct ? | 28 Yes | 7 No |
Where Clause------------------ It is used to Filter Rows
(i.e Restrict Rows and It appiles to the Individual Rows).
Having Clause----------------- It appies on Groups (i.e
Aggregate Functions).
| Is This Answer Correct ? | 23 Yes | 3 No |
Answer / suga priya
query:WHERE DEPARTMENT > 333
query:HAVING AVG(SALARY) > 50000.
| Is This Answer Correct ? | 18 Yes | 4 No |
Answer / yogesh babu
where is also similar to that of where clause used ina
query ... But this search filter is used while using a
groupby clause
| Is This Answer Correct ? | 10 Yes | 3 No |
Answer / anto padma sheela
1. Having clause is usually used with Group By clause
although it can be used without it too.
2. 'Having' is just an additional filter to 'Where' clause.
3. 'Where' clause applies to the individual rows
whereas 'Having' clause is used to test some condition on
the group(usually aggregate methods) rather than on
individual rows.
| Is This Answer Correct ? | 14 Yes | 8 No |
Answer / sonali
1.where clause is apply on individual row ofthe table and
having is apply on group of rows in the output of select
statement.
2.having clause is used with group by clause
3.having clause is used as a final filter on the aggregate
column values in the resultset of select statement.
| Is This Answer Correct ? | 2 Yes | 0 No |
Answer / anant chavda
Þ The WHERE clause excludes rows that do not meet its
search conditions
Þ The GROUP BY clause collects rows that met the WHERE
clause search conditions and places those rows into a group
for each unique value in the GROUP BY clause. Omitting the
GROUP BY clause creates a single group for the whole table.
Þ The HAVING clause excludes groups that do not meet
its conditions. For example: When a query includes a GROUP
BY clause, the HAVING clause excludes groups from the
results. A SELECT statement containing a HAVING clause
without a GROUP BY clause will process the result as one
whole set. Aggregate functions specified in the select_list
calculate summary values for each surviving group.
| Is This Answer Correct ? | 5 Yes | 4 No |
Answer / rajesh dutta
where conditions used only for comparing row values.
having conditions used to compares group values like
min,max,count etc.
| Is This Answer Correct ? | 3 Yes | 3 No |
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