Index_R
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R
RADIANS() function, 551
RAID (redundant array of inexpensive disks), 469–473
other types, 473
RAID 0 (striping), 469–470, 470
RAID 0+1, 472, 473
RAID 1 (mirroring), 470, 470
RAID 2 and RAID 3, 470–471, 471
RAID 4, 471, 471
RAID 5, 471, 472
RAID 10, 472, 472
RaiseError attribute (Perl DBI), 612–613
RAND() function, 551–552
and replication, 344
READ COMMITTED transaction level, 124
read locks
for tables, 118
by BACKUP, 303–304
priority, 120–121
for sharing, 111–112
for updating, 109–111
READ UNCOMMITTED transaction level, 124
REAL column type, 43
record_buffer variable, 385
record_rnd_buffer variable, 386
records in table, 5
adding from other tables, 96–98
adding new, 11–12
changing, 24
deleting, 23–24, 98
inserting those containing auto increment field, 143–144
query to return distinct, 21
term definition, 212
recursive entity, 244
Red Hat Linux
package manager files, 458
starting MySQL in, 264–265
redirecting output to file, 103–105
redundancy of data, 209
REFERENCES privilege, 436, 489
referential integrity, 215–216
refreshRow() method (Java), 637
REGEXP, RLIKE comparison operator, 70, 71, 507–509
regression testing, 189
regular expressions in SQL, 75–79
rehashing, automatic, 52, 54
relational database management system, 4
relational database model, 211–218
foreign keys, 215–216
keys, 214–215
terminology, 212–214
views, 216–218
relations between tables, 31–32
relative() method (Java), 638
RELEASE_LOCK() function, 568
relevance, in full-text search, 134–135
RELOAD privilege, 436, 489
RENAME statement, 492
RENAME TABLE statement, and transaction completion, 117
REPAIR TABLE statement, 289–290, 492
repairing tables
with myisamchk utility, 291–292
with mysqlcheck utility, 290–291
with REPAIR TABLE, 289–290
REPEAT() function, 538
REPEATABLE READ transaction level, 124
REPLACE() function, 539
REPLACE keyword, for LOAD DATA statement, 323–324
REPLACE statement, 492
replication, 473
with active binary log on master, 350–351
avoiding key errors, 356–359
as backups, 335
basics, 337–338, 338
minimizing number of updates, 355–356
removing old binary logs before starting, 352–354
setup, 338–344
commands, 342–343
complexities, 343–344
master configuration file options, 340
slave configuration file options, 340–342
of single database, 344–350
REPLICATION CLIENT privilege, 436, 489
REPLICATION SLAVE privilege, 436
reset function, for aggregate user-defined functions, 200
RESET MASTER statement, 343
RESET SLAVE statement, 343
RESET statement, 492
RESTORE TABLE statement, 305– 307, 492–493
restoring backups
of MyISAM tables, 305–307
from mysqldump, 311–315
from SELECT INTO
with LOAD DATA, 318–325
with mysqlimport, 325–326
REVERSE() function, 539
REVOKE statement, 424, 493
to manipulate permission tables, 428, 431–438
RIGHT() function, 36, 539
right (right outer) joins, 89
ROLLBACK command, 105
rollback() method (Java), 628
rollback method (Perl DBI), 602
rollback() method (Python), 622
rollouts, 249, 256
root user, 7, 416, 426
rotating logs, 277–279
ROUND() function, 552
row locking, for InnoDB tables, 65, 118
RowCacheSize attribute (Perl DBI), 614
ROWCOUNT attribute (Python), 620
rowDeleted() method (Java), 638
rowInserted() method (Java), 638
rows attribute (Perl DBI), 617
rows in database table, 5
PHP function to return array based on, 581
PHP function to return number affected, 572
rows method (Perl DBI), 610
RowsInCache attribute (Perl DBI), 616
rowUpdated() method (Java), 638
RPAD() function, 539–540
Rpl_status variable, 390
rpm utility, for installing MySQL, 458
RTRIM() function, 540
run-all-tests benchmark suite, 394– 408
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