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 { RowId = <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 = "URI=C:\MyExcelWorkbooks\SampleWorkbook.xlsx;"; using (ExcelConnection connection = new ExcelConnection(connectionString)) { int rowsAffected; ExcelCommand cmd = new ExcelCommand("UPDATE Sheet SET LastName='White' WHERE RowId = @myRowId", connection); cmd.Parameters.Add(new ExcelParameter("myRowId","5")); rowsAffected = cmd.ExecuteNonQuery(); }
VB.NET
Dim connectionString As [String] = "URI=C:\MyExcelWorkbooks\SampleWorkbook.xlsx;" Using connection As New ExcelConnection(connectionString) Dim rowsAffected As Integer Dim cmd As New ExcelCommand("UPDATE Sheet SET LastName='White' WHERE RowId = @myRowId", connection) cmd.Parameters.Add(New ExcelParameter("myRowId", "5")) rowsAffected = cmd.ExecuteNonQuery() End Using