Shrinking your data size
With increases in data these days, maintaining space on your Teradata system has become important. Businesses now want to capture data of all sorts and want to store it for longer. With data comes insight. Data you might not be using now could become important tomorrow.
This exponential growth in data has presented us with different kinds of problems in data warehouses. With space management and even disks becoming cheap, space is still a concern for businesses when it comes to money.
So, Teradata provides you with many options to manage your space. Compression of data without sacrificing performance; in Teradata you can compress data in the following ways:
- Multi value compression, MVC: Software based
- Algorithmic value compression, ALC: Software based
- Block level compression, BLC: Hardware based
Multi value compression was introduced in TD5; other compression techniques were added with time.
Data you can compress includes:
- Any numeric data type
- Nulls, zeros, blanks
- DATE
- Fixed...
