在查询表达式中,select子句指定在执行查询时产生的值的类型。 根据计算所有以前的子句以及根据select子句本身的所有表达式得出结果。 查询表达式必须以select子句或group子句结尾。 以下示例演示查询表达式中的简单的select子句。 select子句生成的序列的类型确定查询变量queryHighScores的类型。 在最简单的情况下,select子句仅...
Overview of the Select Case Statement in Excel VBA The Select Case structure allows you to test a variable or expression against multiple possible values and execute different code blocks based on the value. Here’s how it works: In VBA, the Select Case statement is used for this purpose. ...
[translate] aFor example, this expression would select any name starting with the letters Cath, such as Cathy, Catherine, and Catherine Smith: 例如,这个表示将选择开始以信件Cath的任何名字,例如凯茜、Catherine和Catherine史密斯: [translate] 英语翻译 日语翻译 韩语翻译 德语翻译 法语翻译 俄语翻译 阿拉伯...
AggregateTypeWhen not aggregating data, use theXrmAggregateType.Nonemember. This is the default value, so you don't need to set it if you are not using aggregation.Learn more about aggregating data with QueryExpression Each column returned must have a unique name. By default, the column ...
HAVING WITH common_table_expression UNION SELECT clause EXCEPT and INTERSECT INTO clause ORDER BY FROM FOR clause WHERE OPTION clause GROUP BYThe order of the clauses in the SELECT statement is significant. Any one of the optional clauses can be omitted, but when the optional clauses are used...
expressionlistRequired in aCasestatement. List of expression clauses representing match values fortestexpression. Multiple expression clauses are separated by commas. Each clause can take one of the following forms: -expression1Toexpression2 - [Is]comparisonoperatorexpression ...
Removes all duplicate rows from theSELECTresult set so one row is kept from each group of duplicates. Retains only the first row in the set of rows that have the same result calculated on the given expression. DISTINCT ONexpression is explained with the same rule ofORDER BY. Unless you use...
where(String expression)After this function invocation the following functions can be invoked: having(String condition) orderBy(List sortCriteria),orderBy(String sortCriterion[, String sortCriterion, ...]) limit(Integer numberOfRows) lockShared(String lockContention) ...
This expression consists of theDatePartfunction and two arguments — "yyyy" (a constant), and [BirthDate] (an identifier). You can use any valid expression as a field, if the expression outputs a single value when given a single input value. ...
For each number field, choose one of the following functions: SumThe query returns the sum of all the values of the field. AvgThe query returns the average of the values of the field. MinThe query returns the smallest value of the field. ...