SQL Server: SUBSTRING Function. This SQL Server tutorial explains how to use the SUBSTRING function in SQL Server (Transact-SQL) with syntax and examples. In SQL Server (Transact-SQL), the SUBSTRING functions allows you to extract a substring from a string.
Descriptive or Correlational Research Methods. Case studies, surveys, naturalistic observation, and laboratory observation are examples of descriptive or correlational research methods. Using these methods, researchers can describe different events, experiences, or behaviors and look for links between them.ase studies, surveys, naturalistic observation, and laboratory observation are examples of descriptive or correlational research methods.
The scientific method is a logically stepped process used for investigating and acquiring or expanding our understanding. The step-by-step process uses common sense to establish a question, use background research and develop a hypothesis, or prediction. This hypothesis is tested and the subsequent data analyzed.