Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
212 views
in Technique[技术] by (71.8m points)

sql - 改善Teradata中表的创建(improving the creation of a table in teradata)

I need help to improve a table creation in teradata.

(我需要帮助来改善Teradata中的表创建。)

this table has a huge data and we retrieve the data from it heavily

(该表中包含大量数据,我们从中大量检索数据)

  ask by Tarek Sayed translate from so

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

To improve data retrieval you may use the below: 1. partition the table(range,case,date).

(为了改善数据检索,您可以使用以下方法:1.对表进行分区(范围,大小写,日期)。)

2. use compress in columns, so that values occurring again and again will be stored as part of table headers.

(2.在列中使用compress,以便将反复出现的值存储为表头的一部分。)

3. choose indexes(UPI/PI) wisely.

(3.明智地选择索引(UPI / PI)。)


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...