Use of Merge Statement

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…
Refresh a materialized view

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)…
RANK and DENSE_RANK

RANK and DENSE_RANK

RANK() : function always returns sequential order for each record.DENSE_RANK() : It returns continuous order for each record. Copy CodeCopiedUse a different BrowserSELECT empno, deptno, sal, mgr, RANK () OVER (PARTITION BY…
Handle trigger Mutating Error

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…
Disable Date Picker In Oracle APEX

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 : Copy CodeCopiedUse…

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…
Avoid printing interactive report column

Avoid printing interactive report column

Use following expression as column condition and column will not print. Copy CodeCopiedUse a different BrowserNVL (SUBSTR (:request, INSTR (:request, '_', -1) + 1), 'ASHISH') NOT IN ('XLS', 'CSV', 'HTMLD',…