What is OracleCommand?
The OracleCommand class provides the following methods for executing commands against a data source: Item. Description. ExecuteReader. Executes commands that return rows.
What does ExecuteNonQuery return on success?
Return Value of ExecuteNonQuery is Int32.
What does ExecuteNonQuery () method return?
Although the ExecuteNonQuery returns no rows, any output parameters or return values mapped to parameters are populated with data. For UPDATE, INSERT, and DELETE statements, the return value is the number of rows affected by the command. For all other types of statements, the return value is -1.
What is System data OracleClient?
OracleDataAdapter Class (System.Data.OracleClient) Represents a set of data commands and a connection to a database that are used to fill the DataSet and update the database. This class cannot be inherited.
Where is System data OracleClient DLL located?
data. oracleclient. dll on your PC, to the Windows system folder. Alternatively, some programs, notably PC games, require that the DLL file is placed in the game/application installation folder.
What is imports system data Oledb?
OleDbCommand. Represents an SQL statement or stored procedure to execute against a data source. OleDbCommandBuilder. Automatically generates single-table commands that are used to reconcile changes made to a DataSet with the associated database. This class cannot be inherited.
What is ExecuteScalar ()?
ExecuteScalar() in SqlCommand Object is used for get a single value from Database after its execution. It executes SQL statements or Stored Procedure and returned a scalar value on first column of first row in the Result Set.
What is OLEDB connection in C#?
An OleDbConnection object represents a unique connection to a data source. With a client/server database system, it is equivalent to a network connection to the server. Depending on the functionality supported by the native OLE DB provider, some methods or properties of an OleDbConnection object may not be available.
What is executenonquery in oraclexmlcommandtype?
If the XmlCommandType property is set to OracleXmlCommandType.Query then ExecuteNonQuery executes the select statement in the CommandText property, and if successful, returns -1. The XML document that is generated is discarded. This is useful for determining if the operation completes successfully without getting the XML document back as a result.
How do I use executenonquery?
You can use ExecuteNonQuery to perform catalog operations (for example, querying the structure of a database or creating database objects such as tables); or to change the data in a database, without using a DataSet, by executing UPDATE, INSERT, or DELETE statements.
What is the return value of executenonquery in Oracle?
For CREATE TABLE and DROP TABLE statements, the return value is 0. For all other types of statements, the return value is -1. The connection does not exist. The connection is not open. The following example creates an OracleCommand and then executes it by using ExecuteNonQuery.
What is the return value of update command in Oracle xmlcommandtype?
If the command is UPDATE, INSERT, or DELETE and the XmlCommandType property is set to OracleXmlCommandType.None. If the XmlCommandType property is set to OracleXmlCommandType.Insert, OracleXmlCommandType.Update, OracleXmlCommandType.Delete. For all other types of statements, the return value is -1 .