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time_rec_type record, 353-355 TO_CHAR function, 60 TOO_MANY_ROWS exception, 170, 189 transactions in Java Encoder Code 128A in Java time_rec_type record, 353-355 TO_CHAR function, 60 TOO_MANY_ROWS exception, 170, 189 transactions

time_rec_type record, 353-355 TO_CHAR function, 60 TOO_MANY_ROWS exception, 170, 189 transactions use none none integration todraw none with none 2d barcode data matrix autonomous tra none none nsactions, 270-272 committing, 46-47 definition, 39 multiple transactions in blocks, 50 overview, 45-46 rolling back, 47-49 try-it-yourself projects, 51 CHAP4 table, creating, 616. transactions CHAP4_SEQ sequ none for none ence, creating, 616 PL/SQL block script, 617-619. triggering events, 264 triggers try-it-yoursel none none f projects, 290 compound triggers, 648-651 creating triggers, 645-648. TRIM collection method, 323 try-it-yourself projects IF statement p none none rojects, 80, 619-622 iterative control projects, 142, 161, 627-632 CONTINUE WHEN statement, 629-630 FOR loops, 627-628 simple loops, 628-629 WHILE loops, 626-627 object type projects, 554, 696-703 package projects, 493, 681-690 PL/SQL in client/server architecture, 19, 613-614 PL/SQL in SQL*Plus, 19, 613-614 procedure projects, 447, 673-678 current_status procedure, 673-674 dynamic_sql_pkg procedure, 677 get_name_address procedure, 675-676 insert_zip procedure, 674-675 record projects, 378, 659-665 stored code projects, 512 get_course_descript function, 690 get_course_description function, 691-696. AFTER triggers , 269-270, 274-276 autonomous transactions, 270-272 BEFORE triggers, 267-269, 274-276 compound triggers, xxiv capabilities, 300 examples, 302-306 modifying, 306-312 restrictions, 301 structure, 300-301 try-it-yourself projects, 313, 648-651 controlling, xxiv creating, 264-265, 272-273, 645-648 definition, 264 disabling, 265-266 INSTEAD OF triggers, 278-289 mutating table issues, 292-299 restrictions, 266-267 row triggers, 277, 283-285 statement triggers, 277-278, 283-285 triggering events, 264. block projects none for none , 37, 614-616 bulk SQL projects, 437, 665-672 CASE statement projects, 112, 622-626 collection projects, 348, 652-659 compound trigger projects, 313, 648-651 cursor projects, 252, 643-645 error handling projects, 178, 632-635 e_non_null_value exception, 641-642 e_too_many_students exception, 635-639 invalid instructor IDs, handling, 634-635 invalid student IDs, handling, 632-634 exception projects, 209, 227, 635-642 function projects, 455, 679-681 instructor_status function, 680-681 new_student_id function, 679 zip_does_not_exist function, 679-680. variables transaction pr none for none ojects, 51 CHAP4 table, creating, 616 CHAP4_SEQ sequence, creating, 616 PL/SQL block script, 617-619 trigger projects, 290 compound triggers, 648-651 creating triggers, 645-648. TYPE statement, 335 types. See object types time_rec_type none for none example, 353-355 zip_info_rec example, 362-366. USER_DEPENDENCIES view, 499-500 USER_ERRORS view, 498 USER_OBJECTS view, 496 UTL_FILE package v_instructor_n none for none ame variable, 294-295 v_letter_grade variable, 100 v_lname variable, 33 v_new_cost variable, 33 v_num1 variable, 164 v_num2 variable, 164 v_num_flag variable, 86-88 v_pctincr variable, 33 v_radius variable, 613 v_regdate variable, 33 v_result variable, 164 v_student_id variable, 36 v_student_name variable, 177 v_sum variable, 130 v_zip variable, 175-176 VALUES OF option (FORALL statement), 411-412 VALUE_ERROR exception, 167-168, 171, 185 VARCHAR2 datatype, 29 variable-size arrays. See varrays variables, 31. See also specific variables.

example, 561-5 63 exceptions, 561 functions, procedures, and datatypes, 560-561 overview, 559. uninitialized objects, 517-518 uppercase, 597 USER function, 121 user-defined exceptions v_area variabl e, 613 v_average_cost variable, 41 v_calories_per_cookie variable, 32 v_cookies_amt variable, 32 v_counter variable, 33, 118-119, 129-130, 138-141, 147-149, 152-153 v_counter1 variable, 154 v_counter2 variable, 154 v_current_date variable, 469 v_date variable, 89, 619-620 v_day variable, 90-91 v_err_code variable, 224 v_err_msg variable, 224 v_exists variable, 175 v_factorial variable, 138 v_final_grade variable, 92 v_instructor_id variable, 294-295. declaring, 188 none none e_exception1, 201 e_exception2, 201 e_invalid_id, 188-191 e_my_exception, 192 e_no_sections, 206-208 e_too_many_sections, 193-196 raising, 189-191 sample script, 193-196 scope, 191-192. user-defined records creating, 353, none none 659-665 NOT NULL constraint, 354-355. anchored datat ypes, 28-29 cursor variables capabilities, 471-472 compared to cursors, 472 creating, 472 handling, 473 rules for use, 479 sample cursor variable in package, 473-475. variables sample script, 475-479 strong cursor variables, 472 weak cursor variables, 472 declaring and initializing, 31-34 definition, 23-24 examples, 27-28 illegal identifiers, 24-26 initializing with SELECT INTO, 40-42 naming conventions, 24 package variables, 469-470 scope, 34 substitution variables, 13-17 syntax, 24. varrays weak cursor variables, 472 Web pages, generating with Oracle Web Toolkit, 582-596 Web Toolkit WRITE_ERROR exception, 561 writing client-side HT ML image maps, 592-593 form procedures, 587-588 FRAMESET procedures, 587 generating Web pages, 582-596 HTF functions, 586 HTML forms, 588-589 HTP procedures, 581-582 image procedures, 589 server-side HTML image maps, 589-592 table of packages, 581. WHERE CURRENT clause, 261 WHILE loops blocks, 37, 61 4-616 complex functions, 454 to operating system files, 559-562. X-Y-Z ZERO_DIVIDE exception, 170 ZIP column INSTRUCTOR tab none for none le, 603 STUDENT table, 602 ZIPCODE table, 603. zip_cur cursor , 371 zip_does_not_exist function, 455, 679-680 zip_info_rec record, 362-366 zip_rec record, 358-362 zipcode_obj_type, 517 ZIPCODE table, 603. city_varray, 3 none for none 38-341 collection methods, 336-338 course_varray, 653-657 creating, 334-335 definition, 334 name_varray, 652-653 NULL varrays, 335-336 runtime errors, 656-659 sample script, 338-341. views USER_DEPENDENC none for none IES, 499-500 USER_ERRORS, 498 USER_OBJECTS, 496. vr_student var iable, 234 vr_zip variable, 234-235. calculating su none for none m of integers between 1 and 10, 128-131 example, 124-125 flow of logic, 124-125 infinite WHILE loops, 125-126 premature termination of, 126-128 syntax, 124 try-it-yourself projects, 627. white space, f ormatting, 597 WNDS pragma restriction, 504 WNPS pragma restriction, 504.
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