常見例句The column that holds the aggregate value (the average price) is NULL for groups that lack qualifying rows. 對于不符合條件的行的組,保存聚合值(平均價格)的列為NULL。Use the ExecuteScalar method to retrieve a single value (for example, an aggregate value) from a database. 使用ExecuteScalar方法從數(shù)據(jù)庫中檢索單個值(例如一個聚合值)。When used without a GROUP BY clause, aggregate functions report only one aggregate value for a SELECT statement. 如果聚合函數(shù)沒有使用GROUP BY子句,則只為SELECT語句報(bào)告一個聚合值。Angel last year, the aggregate value of all types of allowances 94,031 U.S. dollars, representing a decrease of 2007 around 21%. 安吉爾去年的各類津貼總計(jì)價值94,031美元,較2007年下降了大約21%25。However, there are 930,000 copies of the final aggregate value of approximately 250 million set aside from the stock market and Culture United States warrants. 不過,最終仍有93萬份合計(jì)價值約250萬元的康美權(quán)證作廢退市。Group data and aggregate values, such as finding the sum or average of column values. 將數(shù)據(jù)分組以及聚合值,如計(jì)算列值的總和或平均值。 返回 aggregate-value