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=myusername;Password=mypassword;AuthenticationName=Production;";
using (SuadeoConnection connection = new SuadeoConnection(connectionString)) {
int rowsAffected;
SuadeoCommand cmd = new SuadeoCommand("UPDATE Customers SET Name='John' WHERE Id = @myId", connection);
cmd.Parameters.Add(new SuadeoParameter("myId","100"));
rowsAffected = cmd.ExecuteNonQuery();
}
VB.NET
Dim connectionString As [String] = "User=myusername;Password=mypassword;AuthenticationName=Production;"
Using connection As New SuadeoConnection(connectionString)
Dim rowsAffected As Integer
Dim cmd As New SuadeoCommand("UPDATE Customers SET Name='John' WHERE Id = @myId", connection)
cmd.Parameters.Add(New SuadeoParameter("myId", "100"))
rowsAffected = cmd.ExecuteNonQuery()
End Using