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Download Oracle Jinitiator - Version 1.3.1.28 Download the file and rename the executable to jinit.exe Click here to download the file When the download finishes you can install Oracle JInitiator by locating the file using the Windows Explorer and double-clicking on it to start the installation process. When the installation process has finished, exit your browser and restart it. Return to the initial application starting page and the browser will then load Oracle JInitiator and start your Oracle Developer application. Oracle JInitiator supports the following browser in Microsoft Windows environment: Platform IE 5.5 IE 6.0 Netscape Navigator 4.7.x Windows NT Yes Yes Yes Windows 2000 Yes Yes Yes Windows XP No Yes Yes Windows Vista -- No Not Known But do make sure with Oracle documentation before installing for a browser. Other minimum system requirements for Oracle JInitiator are: Pentium 166 MHz or better processor 70 ...

Hereafter referred to as Jinit, it is a JVM distributed by Oracle Corporation. Jinit enables the Oracle Forms client application (otherwise known as Oracle D2K in earlier versions) in a web browser.   Earlier the Oracle forms where only available as client installed stand-alone applications which accesses the database and file system to run the application. With the advent of Jinit, the client installation of Oracle Forms run time is not required. The browser plug in for Jinit only must be installed.   While accessing the application for the first time if the plug in is not installed the browser will prompt for the installation. At this point, you must be logged in with Admin rights. You can revert the rights once the installation is done.   Versions The Jinit referred to in this article is 1.3.1.28 which was rolled on August 2007. The versions is based on some practises. The first two numbers that is 1.3 in our case refers to the Sun Microsystem's JDK v...

Rule #1 The design of a database must only be thought after the through analysis of the user requirements. Rule #2 Never implement any functionalities of Oracle if it is not required. Always adhere Rule #1. Rule #3 Never implement as per theory, but base your design on practical thought. Always adhere Rule #2. What does this mean? I will elaborate each and every point mentioned above. Also note that all the rules are related to one another. This ensures that the design is always as per user requirements. Rule #1 The first rule says that never start or think of database design before understanding what exactly the user requires. This is the major and very important rule which must be adhered, whatever comes. This rule thus verifies the importance of analysis of user requirements. Unless the requirements of user is fully understood, it will be nearly impossible to design the database. Rule #2 This rule again double verifies the rule #1. The design must be using only using such oracle fun...

The OPatch utility is a tool that allows the application and rollback of interim patches to Oracle products. Patches are a small collection of files that are copied over an existing installation. They are associated to particular versions of Oracle Products. Patches, when applied to the correct version of an installed product, results in an upgraded version of the product.Interim patches are bug fixes that are made available to customers in response to specific bugs. They require a particular base release or patchset to be installed before they can be applied. They generally address specific bugs for a particular customer. These patches are not versioned and are generally made available in a future patchset as well as the next product release. About OPatch OPatch is an Oracle supplied utility to assist you with the process of applying interim patches to Oracle's software. OPatch is a Java-based utility which requires the Oracle Universal Installer to be installed. It is platfo...

Topic: Beginners Level From time immemorial there has been debate over the usage of like clause and its association (or rather non-association with index). What is the fuzz all about? Let's check here. Like clause allows you to use wildcard character searches over data stored in oracle database. By this means we can do pattern searching over the existing data. For example: You have a daily meeting calendar in which the attendees names are stored in comma seperated values in a VARCHAR2(2000) field. You want to search on what days a particular attendee say for instance Rose has attended the meeting. table: meeting_schedule fields: meeting_date date meeting_place varchar2(200) meeting_attendees varchar2(2000) In such a case of searching, without the usage of wildcard characters such as % will not yeild appropriate results. The query for such a situation would be: SELECT meeting_date, meeting_place FROM meeting_schedule WHERE meeting_attendees like '%Rose%'; Now the above query...

In release 8.1, a new SQL function, TO_LOB, copies data from a LONG column in a table to a LOB column. The datatype of the LONG and LOB must correspond for a successful copy. For example, LONG RAW data must be copied to BLOB data, and LONG data must be copied to CLOB data. In the next example we show how to migrate a table with one LONG to a CLOB datatype. Create the LOB Tablespace CREATE TABLESPACE lob1 DATAFILE '/lh4/lob1.dbf' SIZE 2048064K REUSE EXTENT MANAGEMENT LOCAL UNIFORM SIZE 50M PERMANENT ONLINE; Disable temporarily all Foreign Keys set feed off; spool gen_dis_cons.sql; SELECT 'ALTER TABLE ' table_name ' DISABLE CONSTRAINT ' constraint_name ';' FROM user_constraints WHERE UPPER(constraint_name) like 'FK_%' / spool off; set feed on; @gen_dis_cons.sql; Convert LONG to LOB in temporary Table Create a temporary table with converted BLOB field. CREATE TABLE lob_tmp TABLESPACE tab AS SELECT id, TO_LOB(bdata) bdata FROM document; Drop and Rena...

Sometimes, the DBA needs to log into a user's account to make a change, such as to grant a privilege on a user's table to another user, but, may not know what the user's password is , or, may need to make changes to a set of users from a script, but, doesn't want to include their passwords in the script itself.  Oracle provides an undocumented "identified by values" clause in the "alter user" command that can be used for this purpose.  Since the dba_users table contains the encoded password for each user, this value can be used to generate an "alter user" command to reset the user's password back to its original value.  Then, from user system or another DBA user, you can alter the user's password to a known value (such as "whatever"), log into the user's account using "connect userid/whatever", make the changes that are needed, connect back to the system account, and run the generated "alter user...

During a migration it may be important, that nobody can connect to the database. You may have two possibilities to achieve this On Table Level using LOCK TABLE On Database Level using RESTRICTED SESSION Exclusive Table Locks (X) An exclusive table lock is the most restrictive mode of table lock, allowing the transaction that holds the lock exclusive write access to the table. An exclusive table lock is acquired for a table as follows: $ sqlplus scott/tiger SQL> GRANT ALL ON emp TO PUBLIC; SQL> LOCK TABLE emo IN EXCLUSIVE MODE; $ sqlplus test/test SQL> SELECT * FROM scott.emp; (This works) SQL> DELETE FROM scott.emp WHERE empno = 7369; (Waiting ...) Permitted Operations Only one transaction can obtain an exclusive table lock for a table. An exclusive table lock permits other transactions only to query the table. Prohibited Operations An exclusive table lock held by a transaction prohibits other transactions from performing any type of DML statement or placing any type of loc...

Starting with Release 7.1 of Oracle, users have had access to a feature called an inline view. An inline view is a view within a query. Using this feature, you can easily accomplish your task. Example: Show percentage of salaries for each department Every row in the report must have access to the total sum of sal. You can simply divide sum (sal) by that total, and you'll have a number that represents the percentage of the total. column percentage format 99.9 select deptno, sum(sal),sum(sal)/tot_sal*100 "PERCENTAGE" from emp, (select sum(sal) tot_sal from emp) group by deptno, tot_sal; With Oracle8i Release 2 (8.1.6 and higher), you can calculate percentages by using the new analytic functions as well. The query using an analytic function might look like this: column percentage format 99.9 select deptno, sum(sal), (ratio_to_report(sum(sal)) over())*100 "PERCENTAGE" from emp group by deptno; The query produces the same answer—but it does so more efficiently, becau...

Oracle offers several possibilities to process file from within PL/SQL. The most used package is UTL_FILE, but with the disadvantage that the read-buffer is limited to 1023 bytes. If you want to read huge chunks of files you can use the DBMS_LOB package, even for the processing of plain ASCII files. There are two solutions to read a file with DBMS_LOB The file is treaded as a large binary object LOB. The whole file is read and saved in a table column of the data type LOB and then processed. The file is read and processed directly from the filesystem location. This Tip shows exactly this case. Example: Suppose we want to read a big file word by word directly from PL/SQL without saving the whole file in a table column. The words in the file are separated with a blank. For simplicity we assume, that there is exactly one blank between the words and the file is a stream with a newline at the end of the file. First we have to create an ORACLE directory as the schema owner. Do not ad...