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 <select_statement> | {<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 = "User=test;Password=test;URL=http://localhost:8166;"; using (ReckonConnection connection = new ReckonConnection(connectionString)) { int rowsAffected; ReckonCommand cmd = new ReckonCommand("UPDATE Customers SET Name='Hook, Captain' WHERE Id = @myId", connection); cmd.Parameters.Add(new ReckonParameter("myId","10456255-0015501366")); rowsAffected = cmd.ExecuteNonQuery(); }
VB.NET
Dim connectionString As [String] = "User=test;Password=test;URL=http://localhost:8166;" Using connection As New ReckonConnection(connectionString) Dim rowsAffected As Integer Dim cmd As New ReckonCommand("UPDATE Customers SET Name='Hook, Captain' WHERE Id = @myId", connection) cmd.Parameters.Add(New ReckonParameter("myId", "10456255-0015501366")) rowsAffected = cmd.ExecuteNonQuery() End Using