What is CommandType?
What is CommandType?
CommandType can be one of the following values: Text, StoredProcedure, TableDirect. When the value is CommandType. Text, the property CommandText should contain text of a query that must be run on the server. When the value is CommandType. StoredProcedure, CommandText property must be a name of a procedure to execute.
Why we use CommandType in c#?
The CommandType enumeration decides what type of object a command will be executed as. The CommandType enumeration can have any of the three values defined in table 5-25. The name of the stored procedure. The CommandText property should be set to the table name, and all rows and column in the table will be returned.
What is command type in ADO net?
Each strongly typed command object also supports a CommandType enumeration that specifies how a command string is interpreted, as described in the following table. CommandType. Description. Text. An SQL command defining the statements to be executed at the data source.
What is the default value for the CommandType property of command object?
The CommandType property sets or returns a CommandTypeEnum value that defines the type of the Command object. Default is adCmdUnknown. If you do not specify the type, ADO will need to contact the provider to determine the type of the command.
Which CommandType value is incorrect?
Which CommandType value is incorrect?- Answer is wrong. Correct Answer Is TableSchema not in command type.
What is ExecuteNonQuery C#?
ExecuteNonQuery used for executing queries that does not return any data. It is used to execute the sql statements like update, insert, delete etc. ExecuteNonQuery executes the command and returns the number of rows affected.
What are the command object property settings to execute a stored procedure?
CommandType = Text, CommandText = stored procedure name.
What is difference between ExecuteNonQuery and Executequery?
ExecuteReader() returns an object that can iterate over the entire result set while only keeping one record in memory at a time. ExecuteNonQuery() does not return data at all: only the number of rows affected by an insert, update, or delete.
What is Adodb connection?
The ADO Connection object is used to create an open connection to a data source. Through this connection, you can access and manipulate a database.
Which command is used to execute a stored procedure?
EXEC command
The EXEC command is used to execute a stored procedure, or a SQL string passed to it. You can also use full command EXECUTE which is the same as EXEC.
What are command object methods?
The command objects are used to connect to the Datareader or dataset objects with the help of the following methods:
- ExecuteNonQuery:
- ExecuteReader:
- ExecuteScalar:
- 1) Execute : Executes the queries, stored procedures etc.
- 2) Cancel : Stops the method execution.
- 3) CreateParameter : To create a parameter object.
What is ExecuteScalar and ExecuteNonQuery?
ExecuteNonQuery method will return number of rows effected with INSERT, DELETE or UPDATE operations. ExecuteScalar. It’s very fast to retrieve single values from database. Execute Scalar will return single row single column value i.e. single value, on execution of SQL Query or Stored procedure using command object.
What is the difference between DAO and RDO?
DAO which stands for Data Access Objects was mostly used for Desktop applications. which worked with file based databases like MS Access. RDO which stands for Remote Data objects was used for acessing data on a network or servers.
What is commandtype tabledirect in Ole?
CommandType.TableDirect for the name of a table. All rows and columns of the named table will be returned when you call one of the Execute methods. NOTE: TableDirect is only supported by the .NET Framework Data Provider for OLE DB. Multiple table access is not supported when CommandType is set to TableDirect.
Is multiple table access supported when commandtype is set to tabledirect?
Multiple table access is not supported when CommandType is set to TableDirect. Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Provide details and share your research!
What is commandtype in SQL Server?
CommandType contains names that specifies how a command string is interpreted. CommandType.Text for an SQL text command. (Default.) CommandType.StoredProcedure for the name of a stored procedure.
Is the value was not a valid commandtype?
The value was not a valid CommandType. The following example creates a SqlCommand and sets some of its properties. When you set the CommandType property to StoredProcedure, you should set the CommandText property to the name of the stored procedure. The command executes this stored procedure when you call one of the Execute methods.
https://www.youtube.com/watch?v=OuXlgOsqa7g