While most Transact-SQL statements retain their functionality and syntax when used in Embedded SQL, the select, update, and delete statements (the Data Manipulation Language, or DML, statements) can be slightly different in Embedded SQL:
The following four items are specific to the into clause of the select statement.
The into clause can assign one row of data to scalar host variables. This clause is valid only for select statements that return just one row of data. If you select multiple rows, a negative SQLCODE results, and only the first row is returned.
If the variables in an into clause are arrays, you can select multiple rows. If you select more rows than the array holds, an exception of SQLCODE <0 is raised, and the extra rows are lost.
select cannot return multiple rows of data in host variables, except through a cursor or by selecting into an array.
The update and delete statements can use the search condition where current of cursor_name.
