To help organize data and record information... APEX :D
to help record your informantion
ok they are used by lines and dots and boxes to help you scientifically.
A controlled experiment can be used to show a cause and effect relationship. ex: an experiment studying the effect of a certain medicine on patients.
No. A table is the primary object used within a database to store data. A typical database will consist of many tables.
Data warehouses are designed for quick access to large amounts of historical data. Read operations dominate over write operations. Under these conditions, normalization takes a back seat to performance optimization. A different design methodology, called dimensional design is used when planning a data warehouse. There are two common categories of schemas used in data warehousing: star schemas and snow flake schemas. A star schema has a central fact table, surrounded by dimension tables. The fact table contains columns called measures, which are aggregated in queries. The fact table is related to the dimension tables. The dimension tables may have levels, which are implemented as columns. For example, a dimension table named Location may contain columns for Continent, Country, StateProvince and City. This dimension table is not normalized. If you normalize the dimension tables, then each level is placed in its own table. Normalizing the dimension tables results in a snow flake schema.
to help record your informantion
to help record your informantion
to help record your informantion
They help to keep good records of measurements and observations.
who decides how and when data in an organization will be used or controlled
An investigation in science that is controlled is an experiment. The group within the experiment that is controlled is the control group. A control experiment is designed to check or correct the results of a previous experiment. It does this by removing the variable or variables operating in the other experiment. The comparison obtained is an indication or measurement of the effect of the variables concerned
Constants are factors in an experiment that stay the same. This should not be confused with controls -- which is a standard used for comparison
the answer is experiment
gathering data.
Data tables in science are primarily used to: Organize collected data: Systematically record measurements and observations in rows and columns. Summarize information: Condense large amounts of raw data into a manageable format. Facilitate analysis: Make it easier to spot patterns, trends, and relationships. Enable comparison: Directly compare different experimental conditions or variables. Provide evidence: Present clear, structured evidence to support or refute hypotheses. Prepare for visualization: Organize data efficiently for creating graphs and charts. Communicate findings: Present research results clearly and concisely in reports and papers.
You can relate the data present in multiple tables by using the concept of Foreign Keys. for example if we have an employee database that contains various details of an employee scattered in multiple tables, one column in each table can be used to logically group the data in all these tables. For example, the employee number column in each of these tables can be used to relate the data present in these tables.
Data is mainly used during collection, analysis, and conclusion stages of an experiment to test the hypothesis and make informed judgments about the results.