Oracle database error code ORA-31660 – metadata filter name can not be defaulted

Oracle Database Error Code ORA-31660 Description :
metadata filter name can not be defaulted
Error Cause:
A null metadata filter name was supplied.
How to Solve :
Fix the call to specify a metadata filter name.

Oracle Database Error Code ORA-30464 Description :
no summaries exist
Error Cause:
A call was made to refresh_all_mviews, but no summaries exist. At least one summary must exist before calling refresh_all_mviews
How to Solve :
Create one or more summaries

Day trading online is one of various online trading time frames. Choosing an appropriate time frame is very important step, in case you aim at successful online trading but in order to make this choice you have to know about day trading online as much as possible. It’s also necessary to mention that sound knowledge plays decisive role in online trading process as far as your ignorance can be followed by disastrous effects.

Day trading online has flexible and profitable potential but still it’s not online trading time frame for everyone. This time frame presupposes total concentration, analysis, discipline and training because in day trading online trades and profits won’t come to you with ease. What you necessarily have to do in order to succeed is to learn online trading and day trading online and to take it as your business, no matter whether it’s forex online trading, stock option online trading, currency online trading or any other kind of online trading. There is a great variety of online sources which provide education and of course some of them you’ll definitely need, notice that some of them are free and for some you’ll have to pay. But before you decide to pay any source make sure that this information is given by competent and reliable traders.

First of all you have to learn how to manage your risks and losses, how to avoid quick money loss and stay in game. As far as losses are essential part of online trading and every trader, no matter beginner of advanced, experience series of unsuccessful trades, so you should remember that it’s better to learn how to minimize losses and predict possible movement of online trading markets than to learn how to make money quickly. To understand psychology of online trading means to learn how to take losses easily, in other words you have to risk only with such amount of money which you can afford yourself to lose and this loss won’t damage your account, stress you and break your concentration on other trades.

Day trading online presupposes that your profit should be no less than tree times greater than what the amount of money you are going to risk. You should always stay out of the trade below the trade line and in the trade beyond it. Day trading online is based on careful monitoring and analysis, don’t let yourself to be motivated exceptionally by profits. Be patient and reasonable, don’t forget that online trading is a risky business and losses are inevitable. Do learn online trading markets, create your online trading strategy and improve it all the time.

(via: theonlinetradingguide.com)

Online trading concepts are an essential part of online trading, which became popular due to Internet and computers. Today it’s a widely available and widely used way to earn money. Stock online trading, stock option online trading, forex online trading and currency online trading are the most popular ways to earn money online. It’s also necessary to mention that investment analysts claim that stock option online trading and futures online trading are not for everyone because of their complexity, in other words these two types of online trading are meant for advanced traders.

To “trade” means to buy and to sell stocks, options, futures, forex, currency or any other financial products within various online trading markets. Understanding of online trading concepts means understanding of online trading psychology and operation principles of online markets. This knowledge is much more important and decisive in the context of online trading in comparison with techniques of buying and selling any financial product.

Online trading psychology lies in ability to experience losses comfortably. It means that losses are essential and inevitable part of online trading process as far as price is the only reality in online trading markets and markets in their turn are always right. What every trader should aim at in order to succeed is to manage both possible loss and risk.

One of the essential online trading concepts is planing. Don’t associate online trading with gambling and avoid spontaneous and thoughtless decisions, because the results of unplanned online trading can turn out to be disastrous. Every time you are going to trade ask yourself a question if the trade you choose will be as profitable for you as possible. Do question yourself, everyone and everything whether a price will rise or fall. Don’t forget about changeability of online trading markets and use any chance to pull out if the situation suddenly changes for the worse.

Speaking about online trading concepts it’s necessary to consider the situations in which traders usually come to a decision to trade. First of all there is a need to find a trade, financial product, forex or currency which will be profitable and only then make investments. No doubt that putting money for example into promising and strong trade is more wise than investing weak trade but still many traders invest weak trades supposing that they will become profitable. In such cases you should remember that all your decisions should be reasonable and carefully thought out.

In order to manage your profits and shorten your losses, you should learn online trading all the time. Do create your online trading time frame and strategy, try it, analyse results of every trade, change and prove your online trading strategy and method.

In order to learn more about online trading, browse our site and read such articles as how online trading works, successful online trading and online trading tips.

(via: theonlinetradingguide.com)

For those of you that are new to the foreign exchange (forex) market, it is important to familiarize yourselves with this market’s characteristics and unique attributes. The forex market allows traders to buy and sell distinct currency pairs. No commission is charged per trade, the broker is compensated through the buy and sell price differential – commonly known as the “spread”. Below are a few guidelines to start trading with Advanced Currency Markets – your gateway to the largest and most liquid market on earth.

What is Forex (Foreign Exchange, FX) ?

ACM offers online forex trading services for traders wanting to make speculative transactions on the exchange rate between two currencies.

These rates may be influenced by world economic and political events, currency rate differentials, as well as many other factors including extreme weather conditions (hurricanes), acts of terror etc.

Forex is the largest marketplace in the world with more than 3.2 trillion dollars changing hands daily and so making it one of the most attractive and lucrative markets.
How does the foreign exchange market work?

The forex market allows you to buy and sell currencies against each other and speculate on the differences in exchange rates.

Making a transaction on the forex market is simple: the procedures are identical to that of any other market so switching to trading currencies is straightforward for most traders.

Online Forex Trading Platforms detail click here