Index_D

D

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