How to add multiple columns using select statement

Question

Hi friends
i have two TABLES
one table Contain only unique Agent code(23,45,56,88)
second table contain same Agent Code,orderdate & sum(amount)
now i want to add columns in table 1 according to date and update the amount in that column
for example if i select start date 1st july 2014 and end date is 15 july 2014
then i want result 
select agentcode,amount as 01july2014,amount as 02nd july2014 up to 15th july
Please HELP.....

Answer 1

>> I have two TABLES <<
Please post DDL, so that people do not have to guess what the keys, constraints, Declarative Referential Integrity, data types, etc. in your schema are. Learn how to follow ISO-11179 data element naming conventions and formatting rules. Temporal data should
use ISO-8601 formats. You failed on this too!  Code should be in Standard SQL as much as possible and not local dialect. 
This is minimal polite behavior on SQL forums. Ignorance is fine, but why do you have bad manners? The rules are posted at the front of the forum! 
>> one [nameless, unknown] table Contain only unique Agent code(23, 45, 56, 88) <<
You do not know the difference between a code and an identifier!
CREATE TABLE Agents
(agent_id INTEGER NOT NULL PRIMARY KEY); 
>> second table contain same Agent Code, order_date & SUM(order_amount) <<
Wrong again! The SUM() is an aggregate function and cannot be in a column. Tables have keys
CREATE TABLE Orders
(agent_id INTEGER NOT NULL
   REFERENCES Agents(agent_id),
 order_date DATE NOT NULL,
 order_amt DECIMAL (8,2) NOT NULL,
 PRIMARY KEY (agent_id, order_date));
>> now I want to add columns in table 1 according to date and update the amount in that column <<
NO! The running total is a computed column. We do not store them.
>> for example if I select start date 1st July 2014 [sic: 2014-07 -01] and end date is 15 July 2014 [sic: 2014-07-15] <<
If you have ever read a book on SQL, you would know the correct display format for dates! It is the only one in the ANSI/ISO Standards. 
SELECT agent_id, order_date,
       SUM(order_amt) 
       OVER (PARTITION BY agent_id
                ORDER BY order_date
              ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
       AS order_amt_runtot
  FROM Orders
 WHERE order_date BETWEEN '2014-07-01' AND '2014-07-15'; 
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