DatabaseLink`
DatabaseLink`
SQLColumn
SQLColumn[…]
represents a column in an SQL table.
更多信息和选项
- To use SQLColumn, you first need to load DatabaseLink using Needs["DatabaseLink`"].
- The following options can be given:
-
"DataTypeName" None type of the entry "DataLength" None maximum length for variable length data "Default" None default value for column "Nullable" False whether the entry can be null "PrimaryKey" False indicates a primary key column
范例
打开所有单元关闭所有单元基本范例 (1)
If you find that the examples in this section do not work as shown, you may need to install or restore the example database with the "DatabaseLink`DatabaseExamples`" package, as described in Using the Example Databases.
Select data matching a condition:
If you find that the examples in this section do not work as shown, you may need to install or restore the example database with the "DatabaseLink`DatabaseExamples`" package, as described in Using the Example Databases.