Teradata SQL，
-SHOW TABLE | VIEW | MACRO | TRIGGER | PROCEDURE <target-name>;
Findout how table was created
-DATABASE <database-name>;
Change default database
-HELP DATABASE <database-name>;
Get database info
-SELECT * FROM <table-name> SAMPLE 20 | .50;
Get 20 sample | 50% sample
转载于:https://www.jianshu.com/p/339425c49d55
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