By Dan McGhan, Jorge Rimblas, Christoph Ruepprich
Expert Oracle program convey, second Edition is newly up-to-date for APEX 5.0 and brings deep perception from the superior APEX practitioners within the box this day. you are going to know about very important positive factors in APEX 5.0, and the way these will be utilized to make your improvement paintings more straightforward and with larger effect in your enterprise. Oracle program exhibit (APEX) is a completely web-based improvement framework that's equipped into each variation of Oracle Database. The framework rests upon Oracle’s robust PL/SQL language, permitting strength clients and builders to swiftly boost purposes that simply scale to thousands, even hundreds of thousands of concurrent clients. APEX has obvious meteoric development and is turning into the software of selection for ad-hoc software improvement within the enterprise.
The many authors of Expert Oracle program convey, 2d Edition construct their careers round APEX. They be aware of what it takes to make the product sing―developing safe functions that may be deployed globally to clients inside and out a wide firm. The authors come jointly during this e-book to percentage a few of their private and strongest insights into fixing the tough difficulties surrounding globalization, configuration and lifecycle administration, and extra. New during this variation for APEX 5.0 is assurance of Oracle leisure info providers, map integration, jQuery with APEX, and the recent web page dressmaker.
You’ll know about debugging and function, deep secrets and techniques to customizing your program u
ser interface, the best way to safe purposes from intrusion, and approximately deploying globally in a number of languages. Expert Oracle software convey, second Edition is really a ebook that would stream you and your skillset a major step in the direction of the apex of program exhibit improvement.
- Contains all-new content material on Oracle relaxation information prone, jQuery in APEX, and map integration
- Addresses globalization and different issues of enterprise-level development
- Shows how to customise APEX on your personal software needs
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Extra info for Expert Oracle Application Express
The second one functionality will examine the unique checksum with the checksum of the knowledge within the desk for every row the place the 1st functionality returns fake. it is going to go back a Boolean besides. (It will go back fake whilst the information within the desk has replaced. ) ultimately, the 3rd functionality might be a validation functionality returning an errors message in case the various rows you try to replace were replaced via different clients. the second one functionality returns fake. Let’s expand the package deal tab_form_emp_pkg by way of including the 1st functionality defined, proven in directory 4-7. directory 4-7. Checksum—Function 1 functionality compare_checksum_change (p_array IN quantity) go back BOOLEAN; functionality compare_checksum_change (p_array IN quantity) go back BOOLEAN IS commence IF apex_application. g_f02 (p_array) isn't really NULL THEN IF apex_application. g_fcs (p_array) <> wwv_flow_item. md5 (apex_application. g_f02 (p_array), apex_application. g_f03 (p_array), apex_application. g_f04 (p_array), apex_application. g_f05 (p_array), apex_application. g_f06 (p_array), apex_application. g_f07 (p_array), apex_application. g_f08 (p_array), apex_application. g_f09 (p_array), apex_application. g_f11 (p_array) ) THEN go back fake; ELSE go back real; finish IF; ELSE go back real; finish IF; finish compare_checksum_change; warning As already pointed out, the goods of sort uncomplicated Checkbox and Popup Key LOV will reserve arrays for one merchandise. this is why for the distance among the g_f09 and g_f11 arrays. After that, upload the second one functionality, proven in directory 4-8. directory 4-8. Checksum—Function 2 functionality compare_checksum_table (p_array IN quantity) go back BOOLEAN; functionality compare_checksum_table (p_array IN quantity) go back BOOLEAN IS v_empno NUMBER; v_emp_checksum VARCHAR2 (40); start IF apex_application. g_f02 (p_array) isn't really NULL THEN v_empno := apex_application. g_f02 (p_array); decide upon wwv_flow_item. md5 (empno, ename, task, mgr, hiredate, sal, comm, deptno, legitimate ) INTO v_emp_checksum FROM emp the place empno = v_empno; IF apex_application. g_fcs (p_array) <> v_emp_checksum THEN go back fake; ELSE go back actual; finish IF; ELSE go back precise; finish IF; finish compare_checksum_table; because the final functionality, now you can create a validation functionality returning VARCHAR2, which you may then name at the web page, as proven in directory 4-9. directory 4-9. Checksum—Function three functionality validate_data_integrity go back VARCHAR2; functionality validate_data_integrity go back VARCHAR2 IS v_error VARCHAR2 (4000); commence FOR i IN 1 .. apex_application. g_f02. count number LOOP IF no longer compare_checksum_change (i) –- we replaced the row and never compare_checksum_table (i) -– but the desk info has replaced THEN v_error := v_error || ’
’ || ’Row ’ || i || ’: The model of the knowledge within the ’ || ’table has been switch because the final web page ’ || ’rendering. click on here to reload the web page. ’; finish IF; finish LOOP; v_error := LTRIM(v_error, ’
’); go back v_error; finish validate_data_integrity; you could try out this code through making a web page validation of variety PL/SQL functionality (returning mistakes Text), utilizing series 1 for the validation and naming the validation fee information Integrity.