Примери за използване на Aggregate function на Английски и техните преводи на Български
{-}
-
Colloquial
-
Official
-
Medicine
-
Ecclesiastic
-
Ecclesiastic
-
Computer
However, Null values are not evaluated in any SQL aggregate function.
To do this, you apply an aggregate function to a field in your SELECT clause.
When you use the Totals row in the design grid,you must choose an aggregate function for each field.
To do this, you apply an aggregate function to a field in your SELECT clause.
The WITH ROLLUP option is similar to the WITH CUBE option, butcreates only one type of summary for each combination of column and aggregate function.
If you do want your query to perform an aggregate function, choose a summary query.
An aggregate function performs a calculation on a set of values and then returns a single value.
Summary values are omitted if there is no SQL aggregate function in the SELECT statement.
Hover over an aggregate function item, such as Aggregates of UnitPrice.
For more information about the data typesthat each function requires, see Aggregate function reference, later in this article.
An aggregate function is one that is computed using a group of values; for example, Sum or Average.
No other control in a header or footer(and no aggregate function other than Sum) is included in the object.
Examples of such errors include data truncation on execution of an INSERT orUPDATE statement, and encountering a null value during an aggregate function.
When you place a calculated control that uses the Sum aggregate function in the group header, the sum is for the current group.
If expr includes a function, it can be either built-in or user-defined, butnot another domain aggregate or SQL aggregate function.
You can use a type of function called an aggregate function to calculate values for one or more fields or controls.
If you want to use criteria to limit your results, butthe field that you want to apply criteria to is used in an aggregate function, you cannot use a WHERE clause.
For more information about using the other aggregate functions, see the section Aggregate function reference later in this article.
Doing this can improve performance, and if you are going to calculate totals for groups of records,it is easier to use the name of a calculated field in an aggregate function.
For more information about using the other aggregate functions, see the section Aggregate function reference later in this article.
If you want to use criteria to limit your results, butthe field that you want to apply criteria to is used in an aggregate function, you cannot use a WHERE clause.
You can then use an aggregate function, such as Max or Min to return the highest or lowest value, or First or Last to return the earliest or latest date.
For more information about the data types that each function requires,see the section Aggregate function reference, later in this article.
Unless it contains Memo or OLE Object data, a field in the GROUP BY field list can refer to any field in any table listed in the FROM clause, even if the field is not included in the SELECT statement,provided the SELECT statement includes at least one SQL aggregate function.
For example, continuing the previous example,if your SELECT clause applies an aggregate function to[E-mail Address] but not to Company, your GROUP BY clause would resemble the following.
You add a Total row to a query by opening your query in Datasheet view, adding the row, andthen selecting the Count function or another aggregate function, such as Sum, Minimum, Maximum, or Average.
For example, continuing the previous example,if your SELECT clause applies an aggregate function to[E-mail Address] but not to Company, your GROUP BY clause would resemble the following.
The groups are created by cross-referencing columns included inthe GROUP BY clause, and then applying the query's aggregate function to produce summary values for the additional super-aggregate rows.