Index_U

U

underscore (_), 54, 63, 159, 285, 334338

UNIQUE option, 94

unsigned integers, 4142

UPDATE command, 97, 102105

UPPER function, 162

USAGE privilege, 281, 287

USE command, 73, 126

user accounts, 289292

user administration, 205207, 234

user-defined functions, 341

user failures, 286287, 292293

user privileges. See privileges

user table, 285

users

connections, 209

deleting, 291

information about, 205207

names , 14, 285

removal, 286287

resources, 207

restricting access, 286287

root, 14, 27, 279