numeric character data 中文意思是什麼
numeric character data
解釋
數字字元數據-
Cannot be interpreted as character or numeric data
不能被解釋為字元或數值數據。 -
Numeric data is assigned a numeric data type, string data is assigned a character data type, and dates are assigned a date data type
為數值數據分配數值數據類型，為字元串數據分配字元數據類型，為日期分配日期數據類型。 -
A literal value, such as numeric or character data
一個如數字或字元數據這樣的值。 -
However, if the column is a character data type and contains only numeric characters, you can indicate this by setting the numeric string option to y. this setting gives the federated compiler the option of allowing the data source to perform operations that are affected by different collating sequences - because numbers are always sorted the same
然而，如果列是字元數據類型，並且只包含數字字元，那麼可以通過將numeric _ string選項設置為「 y 」來表明這一點。這種設置使聯邦編譯器可以選擇允許數據源執行可能受不同排序序列影響的操作因為數字總是按相同順序排序。 -
For code that works with simple numeric or character data in tight loops, pyrex can produce significant speedups, maybe 50 times the speed in best cases
對于在循環中使用簡單的數字或字元數據的代碼來說， pyrex的加速效果非常明顯，在最佳情況中，可能會是50倍。 -
Numeric data type can include optional exponential notation a lowercase e or uppercase e followed by an optional plus or minus sign and then a number. character expressions that are being converted to an exact
數據類型的字元表達式包含可選的指數符號[一個大寫或小寫的字母e後跟可選的加號（ + ）或減號（ - ） ，然後再跟一個數字] 。 -
For example, you cannot join a column that has a numeric data type with a column that has a character data type
例如，不能將具有數值數據類型的列和具有字元數據類型的列相聯接。
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