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Index
Q
Qcache_free_blocks variable, 390
Qcache_free_memory variable, 390
Qcache_hits variable, 390
Qcache_inserts variable, 389
Qcache_not_cached variable, 390
Qcache_queries_in_cache variable, 389
Qcache_total_blocks variable, 390
QUARTER() function, 520
queries. See also information retrieval; SELECT statement
normalization and performance, 236
PHP function to return information about, 586
PHP function to return results, 590–591
programming, 179–181
unbuffered, PHP function to return results, 593
query log, 272, 273
query optimizer, 169–170
query_buffer_size variable, 386
query_cache_limit variable, 386
query_cache_size variable, 386
query_cache_startup_type variable, 386
QUERY_CACHE_TYPE variable, 392, 496
Questions variable, 390
QUIT command, 7
QUOTE() function, 538
quote method (Perl DBI), 602
quote_identifier method (Perl DBI), 602
quotes ('), for string field, 12
