UPDATE Statements
To modify existing records, use UPDATE statements.
Update Syntax
The UPDATE statement takes as input a comma-separated list of columns and new column values as name-value pairs in the SET clause, as shown in the following example:
UPDATE <table_name> SET { <column_reference> = <expression> } [ , ... ] WHERE { Id = <expression> } [ { AND | OR } ... ]
<expression> ::=
| @ <parameter>
| ?
| <literal>
You can use the ExecuteNonQuery method to execute data manipulation commands and retrieve the rows affected, as shown in the following example:
C#
String connectionString = "Port=993;Server=outlook.office365.com;Password=password;User=user;Protocol=IMAP;SMTP Port=587;SMTP Server=smtp.office365.com;"; using (EmailConnection connection = new EmailConnection(connectionString)) { int rowsAffected; EmailCommand cmd = new EmailCommand("UPDATE [INBOX] SET Subject='Spam' WHERE Id = @myId", connection); cmd.Parameters.Add(new EmailParameter("myId","1")); rowsAffected = cmd.ExecuteNonQuery(); }
VB.NET
Dim connectionString As [String] = "Port=993;Server=outlook.office365.com;Password=password;User=user;Protocol=IMAP;SMTP Port=587;SMTP Server=smtp.office365.com;" Using connection As New EmailConnection(connectionString) Dim rowsAffected As Integer Dim cmd As New EmailCommand("UPDATE [INBOX] SET Subject='Spam' WHERE Id = @myId", connection) cmd.Parameters.Add(New EmailParameter("myId", "1")) rowsAffected = cmd.ExecuteNonQuery() End Using