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
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
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
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
We are going to disable the date picker, because some times we don’t need to allow for editing (due to some privilege ). Approach is using Jquery :Create a javaScript function : Since you run this function on page (Execute... Read more
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
Nested table is awesome feature of Oracle. You can create table inside a table, Which means one column can be treated as a table. Nested tables are faster than the parent child table relationship. Steps : CREATE TYPE emp_table_type AS... Read more
Use following expression as column condition and column will not print. Read more