问data_precision和data_scale在甲骨文all_tab_columns中的缺失EN在进行 Oracle 数据抽取（例如基于 LogMi...
DATA_PRECISION NUMBER Y Length: decimal digits (NUMBER) or binary digits (FLOAT)/*数字类型的实际长度*/ DATA_SCALE NUMBER Y Digits to right of decimal point in a number/*小数点位数*/ NULLABLEVARCHAR2(1) Y Does column allow NULL values? COLUMN_ID NUMBER Y Sequence number of the column as...
When adding a numeric field to a file or personal geodatabase attribute table, 'precision' refers to the number of significant digits that can be stored in a field, and 'scale' represe
這個範例示範 Column 物件的 NumericScale 和Precision 屬性。 此程式代碼會針對 Northwind 資料庫的 [訂單詳細數據] 資料表顯示其值。 複製 // BeginNumericScalePrecCpp.cpp // compile with: /EHsc #import "msado15.dll" rename("EOF", "EndOfFile") #import "msadox.dll" ...
这两个属性都属于user_tab_columns视图,他们的含义: data_length:当前列数据类型的字节长度 如:EMPNO NUMBER(4) 22 ENAME VARCHAR2(10) 10 data_precision:列相关数据类型(数字类型)的具体长度(有效位数),一个十进制数(NUMBER类
type Error: Cannot drop the database because it is being used for replication. ERROR: date/time field value out of range: Error: Invalid object name 'UPDATED' in trigger Error: query processor ran out of internal resources (How can we prevent this) Error: The data types varchar and ...
SqlDecimal ConvertToPrecScale (System.Data.SqlTypes.SqlDecimal n, int precision, int scale); 参数 n SqlDecimal 将要调整其值的 SqlDecimal 结构。 precision Int32 新SqlDecimal 结构的精度。 scale Int32 新SqlDecimal 结构的小数位数。 返回 SqlDecimal 一个新 SqlDecimal 结构,其值已经调整为参数...
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Numeric data type with fixed precision and scale FLOAT Stores floating-point numbers with binary precision. DOUBLE Stores double-precision floating-point numbers. Time and date DATE Stores information about the year, month, and day. TIMESTAMP Stores information about the year, month, day, hour, ...
此示例演示 Column 对象的 NumericScale 和Precision 属性。 此代码显示了其在 Northwind 数据库的 Order Details 表的值。 复制 ' BeginNumericScalePrecVB Sub Main() On Error GoTo NumericScalePrecXError Dim cnn As New ADODB.Connection Dim cat As New ADOX.Catalog Dim tblOD A...