SQL::UpdateStatement Object
Description
The SQL::UpdateStatement object encapsulates the parsing and properties of a SQL UPDATE statement. as a result, it has the most properties. Its children are the various clauses that make up a complete UPDATE statement.
Example
Note that the fields to update and the corresponding value are specified in a comma delimited list of name/value pairs.
dim conn as SQL::Connection dim upd as SQL::UpdateStatement dim cs as SQL::CallResult dim connString as C dim sql_update as C connString = "{A5API='Access', FileName='c:\program files\a5v7\mdbfiles\alphasports.mdb'}" sql_update = "update customer set bill_city = 'Phoenix', bill_postal_code = '08000', bill_state_region = 'AZ' where customer_id = 1" if .not. conn.open(connString) then end end if if .not. upd.parse(sql_update) then ui_msg_box("Error", upd.callresult.text) end end if if .not. upd.execute(conn) then end end if cs = upd.CallResult ui_msg_box("Call result", cs.Text)
Properties
- ArgumentsSQL::Arguments
Arguments for the current query.
- CallResultSQL::CallResult
Call results.
- ColumnReferencesReferenceList of SQL::Query:: ColumnReference
An array of all column references in the query (including nested occurrences). Behaves the same way as .SelectTableReferences.
- ConnectionSQL::Connection
Current open connection
- ErrorColumnNumeric
The column number of the last error reported by the parser.
- ErrorTextCharacter
The text of the last parser error reported.
- FunctionReferencesReferenceList of SQL::Query::ValueExpression
An array of all function calls. Behaves the same way as .SelectTableReferences.
- ObjectDefinitionsCharacter
For internal debugging. Returns a string description of the mapping between the ANTLR grammar and the Xbasic objects.
- ParseTreeCharacter
For internal debugging. A string description of the underlying parse tree.
- SetReferenceList of SQL::Query::Assignment
Column = Value objects (SQL::Query::Assignment) to be used in setting values.
- SelectTableReferencesReferenceList of SQL::Query::SelectTableReference
An array of all table references in the from clause and those joined to them. This array is created when the property is requested, but can become out of date. Use the Resynch() function on any variable holding this list when any changes are made.
- SQLStatementCharacter
A variable that can be assigned a syntax string without parsing it. If no value is passed to the ::Parse() method, this value is used.
- TableSQL::Query:: SelectTableReference
The table to be inserted into.
- TokenTypeNameCharacter
"Query".
- WhereSQL::Query:: LogicalExpression
An expression for the WHERE clause.
- XMLCharacter
Creates XML from the tree or recreates the tree from the XML.
Methods
- Execute Method
Execute the current statement using the current or passed connection. Optionally providing argument values as an object or as XML.
- GenerateNativeSyntax Method
Generate a native SQL statement using the selected syntax associated with the current or passed connection.
- Parse Method
Parse the SQLStatement passed (or the value previously set into the SQLStatement property).
- Reset Method
Reset the query as if it had just been created.
- Validate Method
Execute the current statement using the current or passed connection.
See Also