CommandType Enum
Important
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Specifies how a command string is interpreted.
public enum class CommandType
public enum CommandType
type CommandType =
Public Enum CommandType
- Inheritance
Name | Value | Description |
---|---|---|
Text | 1 | An SQL text command. (Default.) |
StoredProcedure | 4 | The name of a stored procedure. |
TableDirect | 512 | The name of a table. |
When the IDbCommand.CommandType property is set to StoredProcedure
, the IDbCommand.CommandText property should be set to the name of the stored procedure to be accessed. The user may be required to use escape character syntax or include qualifying characters if any of the specified tables named contain any special characters. All rows and columns of the named table or tables will be returned when you call one of the Execute methods of a Command object.
When the IDbCommand.CommandType property is set to TableDirect
, the IDbCommand.CommandText property should be set to the name of the table to be accessed. The user may be required to use escape character syntax or include qualifying characters if any of the tables named contain any special characters. All rows and columns of the named table will be returned when you call one of the Execute methods.
In order to access multiple tables, use a comma delimited list, without spaces or padding, containing the names of the tables to access. When the CommandText
property names multiple tables, a join of the specified tables is returned.
Note
TableDirect
is only supported by the .NET Framework Data Provider for OLE DB. Multiple table access is not supported when IDbCommand.CommandType is set to TableDirect
.
Product | Versions |
---|---|
.NET | Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
.NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
.NET Standard | 2.0, 2.1 |
UWP | 10.0 |
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