Click here to Login

                                                   Database- and Screeners via script


Alpha Trader
2018-03-28 10:24:52

Hello - I'm running about 30 screeners via script.

Right now, I have them looping one at a time. each one can take up to 1-2min. Depending.

If I split the work into 6 scripts(5 screeners in each) and execute them at the same time via task mamager. Would their be any problems with the integrity of the data/database? I.e. several screeners overlap in the symbols list and multiple scripts would be accessing quotes data for the same symbols at the same time. Any issues or potential for erroneous data?

2018-03-30 04:52:15



There won't be any problem with integrity of the data. We have internal mechanisms that prevent reading or writing the database at the same time.

However, it is always a good idea to make a copy of your database (for other reasons).

No more messages


No html code. URLs turn into links automatically.

Type in the trading objects you want to include: - Add Objects
To add a trading object in your message, type in the object name, select it and then click on "Add Objects"


Trading Items
US Crude Oil Supply, Consumption, and Inventories
MAE and MFE of a Trading System
Relative Performance Chart - Dynamic assets and index
Breakout With Volume and liquidity
Staggered Entry and Exit Strategy

How-to Lessons
How to run a screen or a watchlist from a script
How to get stocks for a particular index using the global script
How to execute a script at regular intervals
How to backup your databases (EOD, Intraday, Tick and Custom) and...
How to scale and move the chart Y-axis

Related Forum Threads
Money Management Script variables and more
All my screeners and strategies disapeared??!
Money Management script and exit options in the wizard
Adjust the Entry and exit prices of trades in AMM script
Adding symbols and changing properties from script

Blog Posts
How to filter quotes data from high and low price spikes
Real Time Alerts: Support and Resistance Lines Breakout
How to build and backtest a robust stock trading system
Trading System Analysis: Backtesting report and custom measures
How to get buy and sell orders for a portfolio based on a trading...

Create an account
Affiliate Program
Contact Us
Trading Forum
How-to Lessons
About Us
Terms of Use

Copyright 2021
Social Media
Follow us on Facebook
Twitter Follow us on Twitter
Follow us on Google+
RSS Trading Items

Trading financial instruments, including foreign exchange on margin, carries a high level of risk and is not suitable for all investors. The high degree of leverage can work against you as well as for you. Before deciding to invest in financial instruments or foreign exchange you should carefully consider your investment objectives, level of experience, and risk appetite. The possibility exists that you could sustain a loss of some or all of your initial investment and therefore you should not invest money that you cannot afford to lose. You should be aware of all the risks associated with trading and seek advice from an independent financial advisor if you have any doubts.