database management system (DBMS), 7, 78, 126
databases. See also individual programs and commands by name
composite keys, 85
concatenated keys, 83, 85, 87, 190
defining, 112–113
general discussion, 6–8, 78–89
indexes, use of, 113
locking/unlocking, 162–163
modifying, 113–115, 188
naming in PHP, 156
physical design of, 78, 84, 95–96
security of, 371
structured, 89
tables, 78
data flow diagrams defined, 92, 95
data source names (DNSs) defined, 156–160
data store defined, 6, 93
datatype defined, 84, 142
DBII, 7
deadly embrace defined, 369
debugging
client-side events, 42–44
HTML, 24–25
JavaScript, 43
SQL, 191
test suites, 44
defensive measures, 367
delete command, SQL, 187
delete from tablename statement, SQL, 187
delete statement, SQL, 106
delimiter symbols, PHP and ASP, 8, 54–55, 66
describe catalog command, MySQL, 135, 136
Document Object Models
client-side scripting, 34–36
JavaScript calculations, 41–42, 101
drop database command, MySQL, 131, 132
drop statement, SQL, 105