Create user in Oracle 12 C

Create user 12C: connect system/manager as sysdba alter session set "_ORACLE_SCRIPT"=true; / create user lime identified by limeoracle; / grant dba to lime; / connect lime/limeoracle / create table test(lime number); Read more

Oracle Functions

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Use of Merge Statement

Sometimes whenever we want to insert records into table with the conditions For existing records (if found then) Update, For Non Existing records (If not found) then insert Step 1 : Create table a_merge as select empno , ename from... Read more

Refresh a materialized view

To refresh a Materialized view we need DBMS_SNAPSHOT.REFRESH procedure. Steps. CREATE TABLE demo_m ( id NUMBER (10) primary key, name VARCHAR2 (400) ); / INSERT INTO DEMO_M ( ID, NAME) VALUES (1001, 'VIKAS' ); / SELECT * FROM demo_m; One... Read more

Get Current Schema and DB name

Some times we do not know about our schema exist in which db and which is our schema hare is the method to find db and schema name. Result Schema Name:ASH_SCHEMA My DB Name:ORCL Read more


RANK() : function always returns sequential order for each record.DENSE_RANK() : It returns continuous order for each record. Read more

Handle trigger Mutating Error

Many times we have faced the problem of trigger Mutating error. error ORA-04091: table TEST1.TEST_MUTATING is mutating, trigger/function may not see it let see how it comes and resolve CREATE TABLE test_mutating ( id NUMBER, name VARCHAR2(400 byte) ); INSERT... Read more

Disable Date Picker In Oracle APEX

We will disable the date picker because sometimes we don’t need to allow editing (due to some privilege ). The approach is using JQuery:Create a JavaScript function : Since you run this function on page (Execute on page load OR... Read more

Constraints in Nested table

In my previous blog “Working With Nested Table Oracle ” I explained how to work with nested tables. Here we can also define Constraints to the nested table. According to the previous blog “Working With Nested Table Oracle,” we have Table:=... Read more

Set item at right of interactive Report search bar Oracle APEX

How to Set item at right of APEX interactive Report search bar? We can set position of any item at right of interactive search bar by using simple JavaScript code. Steps : Output: DEMO Read more