What is ExecuteReader in SQL?

What is ExecuteReader in SQL?

ExecuteReader will be used to return the set of rows, on execution of SQL Query or Stored procedure using command object. This one is forward only retrieval of records and it is used to read the table values from first to last. (

Can you use SQL in PowerShell?

There are two SQL Server PowerShell modules; SqlServer and SQLPS. The SqlServer module is the current PowerShell module to use.

How do I use ExecuteReader?

ExecuteReader to get just one value from the database. Instead, you should use Command. ExecuteScalar as following: String sql = “SELECT ColumnNumber FROM learer WHERE learer.id = ” + index; SqlCommand cmd = new SqlCommand(sql,conn); learerLabel.

Does ExecuteReader close connection?

Ultimately it is the Close method of the data reader that will close the connection, provided nothing has gone wrong before. If there is an exception that occurs inside ExecuteReader or any of its called methods, before the actual DataReader object is constructed, then no, the connection will not be closed.

What does ExecuteReader return?

ExecuteReader() MethodExecuteReader() method is used with SELECT command. It returns set of rows by executing query or stored procedure mentioned in the command object.

What is PowerShell in SQL?

PowerShell is the preferred scripting tool used by Windows and Active Directory administrators. It can also be used to administer SQL Server or even just export data.

How connect MySQL to PowerShell?

Connecting PowerShell to MySQL Database

1. Download Connector/Net. The first step is to download the ADO.Net MySQL driver, which can be found here. Note the directory where this will be installed.
2. Load the . dll in PowerShell.
3. Define and Open the Connection String. Next, we need to create a new variable called $myconnection.

What is difference between ExecuteReader and ExecuteNonQuery?

ExecuteReader() returns an object that can iterate over the entire result set. ExecuteNonQuery() does not return data at all: only the number of rows affected by an insert, update, or delete.

How do I connect to MySQL database using PowerShell?

Do I need to dispose SqlDataReader?

Do not call Close or Dispose on a Connection, a DataReader, or any other managed object in the Finalize method of your class. In a finalizer, you should only release unmanaged resources that your class owns directly.