Returns: A SESAM "result identifier" on success, or FALSE on error.
A "result_id" resource is used by other functions to retrieve the query results.
sesam_query() sends a query to the currently
active database on the server. It can execute both "immediate"
SQL statements and "select type" queries. If an "immediate"
statement is executed, then no cursor is allocated, and any
subsequent sesam_fetch_row() or
sesam_fetch_result() call will return an empty
result (zero columns, indicating end-of-result). For "select
type" statements, a result descriptor and a (scrollable or
sequential, depending on the optional boolean
scrollable
parameter) cursor will be
allocated. If scrollable
is omitted, the
cursor will be sequential.
When using "scrollable" cursors, the cursor can be freely positioned on the result set. For each "scrollable" query, there are global default values for the scrolling type (initialized to: SESAM_SEEK_NEXT) and the scrolling offset which can either be set once by sesam_seek_row() or each time when fetching a row using sesam_fetch_row().
For "immediate" statements, the number of affected rows is saved for retrieval by the sesam_affected_rows() function.
See also: sesam_fetch_row() and sesam_fetch_result().
Пред. | Начало | След. |
sesam_num_fields | Уровень выше | sesam_rollback |