Index_E

E

EDIT command, 8, 146, 352

editing commands (SQL*Plus), 143 “145

editing SQL statements, 143 “145

editor, setting the default, 146

ELSE keyword, 335

ELSIF keyword, 335

employee relationships tree, 195

employees table, 18, 19

employees2 table, 202 “203

EMPTY_BLOB() function, 431

EMPTY_CLOB() function, 431

ENABLE CONSTRAINT clause, 304

ENABLE NOVALIDATE clause, 301, 304

ENABLE_AT_SYSTEM_CHANGE_NUMBER() procedure, 269

ENABLE_AT_TIME() procedure, 267

END IF keyword, 335

END keyword, 333, 349

ENTER, pressing at the end of SQL statements, 28

environment variables , setting for Java, 477 “478

equal_example() procedure, 417

equality operator (=)

to compare nested tables, 417 “418

in joins, 45, 49

in a WHERE clause, 37, 167

equijoins , 49

era, datetime formatting parameters for, 108

ERASE() function, 449 “450

erase_example() procedure, 449 “450

error handling (PL/SQL), 333

Error ORA-00001 unique constraint violated, 253

Error ORA-00934 group function not allowed here, 97

Error ORA-00937 not a single-group function, 96

Error ORA-00942 table or view does not exist, 283 “284

Error ORA-01017 invalid username/password, 508

Error ORA-01031 insufficient privileges, 277

Error ORA-01427 single-row subquery returns more than one row, 170

Error ORA-02291 integrity constraint violated, 254

Error ORA-02292 integrity constraint violated, 254

Error PLS-00370 OTHERS handler must be last, 347

ESCAPE option, 40

EXCEPTION block (PL/SQL), 26, 333, 342, 345 “346,  349

exception handling, in Java, 498 “499

exceptions

table of predefined, 343 “344

thrown by APPEND(), 441

thrown by COMPARE(), 445

thrown by COPY(), 447

thrown by CREATETEMPORARY(), 448

thrown by ERASE(), 449

thrown by FILECLOSE(), 451

thrown by FILECLOSEALL(), 451

thrown by FILEEXISTS(), 452

thrown by FILEGETNAME(), 452

thrown by FILEISOPEN(), 453

thrown by FILEOPEN(), 454

thrown by FREETEMPORARY(), 454

thrown by GETCHUNKSIZE(), 455

thrown by GETLENGTH(), 457

thrown by INSTR(), 457

thrown by ISOPEN(), 459

thrown by ISTEMPORARY(), 461

thrown by LOADBLOBFROMFILE(), 465

thrown by LOADCLOBFROMFILE(), 466

thrown by LOADFROMFILE(), 461

thrown by OPEN(), 467

thrown by READ(), 437

thrown by SUBSTR(), 468

thrown by TRIM(), 469

thrown by WRITE(), 441

thrown by WRITEAPPEND(), 469

exceptions (PL/SQL), 342 “347

executable statements (PL/SQL), 333

EXECUTE ANY PROCEDURE privilege, 275

Execute button, 8

EXECUTE privilege on DBMS_FLASHBACK, 266

execute() method (JDBC), 487 “488, 491 “492, 498, 511

executeQuery() method, 487

executeUpdate() method, 491 “492

execution plan operations, table of, 547

execution plans, 542 “547

comparing, 541 “548

explained, 509

generating, 543 “544

involving table joins, 546 “547

stored in plan table, 545

EXISTS operator, 171, 174 “176, 547

with a correlated subquery, 174 “176

vs. DISTINCT, 537 “538

vs. IN, 175 “176, 537

EXIT command (SQL*Plus), 10, 25

EXIT statement, 336

EXIT WHEN statement, 336

EXPLAIN PLAN command (SQL*Plus), 542 “544

explain_plan.sql, 545 “546

expressions, using with functions, 71

EXTEND, using, 409 “410

extend_addresses() procedure, 409

extended GROUP BY clauses, 201 “203, 206 “207

EXTRACT() function, 130 “131