Query

Create a SELECT ALL (*) statement instance. You can then call the Select instance’s methods such as from() method to construct the complete Query instance.

Create a SELECT DISTINCT ALL (*) statement instance. You can then call the Select instance’s methods such as from() method to construct the complete Query instance.

Runs the query. The returning an enumerator that returns result rows one at a time. You can run the query any number of times, and you can even have multiple enumerators active at once. The results come from a snapshot of the database taken at the moment -run: is called, so they will not reflect any changes made to the database afterwards.

Returns a string describing the implementation of the compiled query. This is intended to be read by a developer for purposes of optimizing the query, especially to add database indexes. It’s not machine-readable and its format may change.

As currently implemented, the result is two or more lines separated by newline characters:
* The first line is the SQLite SELECT statement.
* The subsequent lines are the output of SQLite's "EXPLAIN QUERY PLAN" command applied to that
  statement; for help interpreting this, see https://www.sqlite.org/eqp.html . The most
  important thing to know is that if you see "SCAN TABLE", it means that SQLite is doing a
  slow linear scan of the documents instead of using an index.
@param outError If an error occurs, it will be stored here if this parameter is non-NULL.
@return a string describing the implementation of the compiled query.

Returns a live query based on the current query. @return a live query object.