Oracle if inserting or updating dating muslim man problems

delete from emp; Use the MERGE statement to select rows from one table for update or insertion into another table. those rows which are already present in sales_history, their amount should be updated and those rows which are not present in sales_history table should be inserted.The decision whether to update or insert into the target table is based on a condition in the ON clause. merge into sales_history sh using sales s on (s.prod=and s.month=sh.month) when matched then update set sh.amount=s.amount when not matched then insert values (prod,month,amount); After the statement is executed sales_history table will look like this.To achieve the above we can give a multi table INSERT statement given below Insert all Into week_sales(prodid,prodname,weekday,amount) Values (prodid,prodname,’Mon’,mon_amt) Into week_sales(prodid,prodname,weekday,amount) Values (prodid,prodname,’Tue’,tue_amt) Into week_sales(prodid,prodname,weekday,amount) Values (prodid,prodname,’Wed’,wed_amt) Into week_sales(prodid,prodname,weekday,amount) Values (prodid,prodname,’Thu’,thu_amt) Into week_sales(prodid,prodname,weekday,amount) Values (prodid,prodname,’Fri’,fri_amt) Into week_sales(prodid,prodname,weekday,amount) Values (prodid,prodname,’Sat’,sat_amt) Select prodid,prodname,mon_amt,tue_amt,wed_amt,thu_amt Fri_amt,sat_amt from sales; Update statement is used to update rows in existing tables which is in your own schema or if you have update privilege on them.

For the first WHEN clause that evaluates to true, the database executes the corresponding INTO clause and skips subsequent WHEN clauses for the given row.

The following are the DML statements available in Oracle. For example the following statement inserts row in emp table by supplying values for empno, ename, and sal columns only. Insert into emp (empno,ename,sal) values (102,’Ashi’,5000); Suppose you want to add rows from one table to another i.e.

Use the Insert Statement to Add records to existing Tables. suppose we have Old_Emp table and emp table with the following structure Now we want to add rows from old_emp table to emp table.

UPDATE_EMP_THRU_OUTEMP_VIEW", line 2 ORA-04088: error during execution of trigger 'SCOTT.

UPDATE_EMP_THRU_OUTEMP_VIEW' [email protected]&Gt update outemp set dname = 'OPERATIONS' where ename = 'C Farmer'; 1 row updated.

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