Can we alter a table with data in Teradata?

Question

ALTER TABLE command is used to add or drop columns from an existing table. You can also use ALTER TABLE command to modify the attributes of the existing columns.

Can you ALTER a table with data in it?

Existing tables can be altered with an ALTER TABLE statement. An ALTER TABLE statement is part of DDL, and is for altering a table schema only; we'll look at updating data in a table later in this book.

How do I edit a table in Teradata?

Teradata : Alter tables1Rename the table.2Add / Modify / Rename / Drop Column.3Add / Remove Column Title.4Add Column Compression.5Remove Column Compression.6Add/ Modify / Remove Primary Index.7Add / Remove NOT NULL Constraint.8Add / Remove Primary Key.Teradata : Alter tables - DbmsTutorials

How do I edit a table without losing data?

There are some good fixes for this issue:1Set a default value (recommended) for the column you're creating.2Create the column without the NOT NULL , set the appropiate values, and then make the column NOT NULL .How to alter MySQL table without losing data? - Stack Overflow

How do you change the datatype of an existing column in a table in Teradata?

Changing a column Datatype length in Teradata1ALTER TABLE Table_Name.2ADD Existing_Column_Name New_Data_Type(New_Length)Changing a column Datatype length in Teradata - Forget Code

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