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Inserting Rows with SQLBulkOperations

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Inserting data with SQLBulkOperations is similar to updating data with SQLBulkOperations because it uses data from the bound application buffers.

So that each column in the new row has a value, all bound columns with a length/indicator value of SQL_COLUMN_IGNORE and all unbound columns must either accept NULL values or have a default.

To insert rows with SQLBulkOperations, the application does the following:

  1. Sets the SQL_ATTR_ROW_ARRAY_SIZE statement attribute to the number of rows to insert and places the new data values in the bound application buffers. For information on how to send long data with SQLBulkOperations, see Long Data and SQLSetPos and SQLBulkOperations.

  2. Sets the value in the length/indicator buffer of each column as necessary. This is the byte length of the data or SQL_NTS for columns bound to string buffers, the byte length of the data for columns bound to binary buffers, and SQL_NULL_DATA for any columns to be set to NULL. The application sets the value in the length/indicator buffer of those columns that are to be set to their default (if one exists) or NULL (if one does not) to SQL_COLUMN_IGNORE.

  3. Calls SQLBulkOperations with the Operation argument set to SQL_ADD.

After SQLBulkOperations returns, the current row is unchanged. If the bookmark column (column 0) is bound, SQLBulkOperations returns the bookmarks of the inserted rows in the rowset buffer bound to that column.