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Home > Delphi/C++ Components > Absolute Database > Alter Table Add SQL Example

Absolute Database

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Alter Table Add SQL Example
This sample illustrates use of ALTER TABLE statement with ADD option.
This SQL script contains eight queries.
First one deletes table named "MyTable".
The second creates this table with 3 fields.
Queries 3 - 6 insert some data into the table.
The seventh query adds a new column named "val3" of type float to the table.
Query #8 retrieves all rows from this table.

drop table MyTable;
create table MyTable (ID AutoInc, val1 Integer, val2 string(10));
insert into MyTable (val1, val2) values (2,'2');
insert into MyTable (val1, val2) values (4,'3');
insert into MyTable (val1, val2) values (5,'9');
insert into MyTable (val1, val2) values (7,'Hello');
alter table MyTable add (val3 float);
select * from MyTable order by ID val2 desc;

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Product Info


Current version: 7.90
Released: May 18, 2017
Price: $ 149

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The other people in the office didn't believe me when I said that all I had to do was document the problem and you would probably give me a fix overnight. Unbelievable! Keep up the great work. I hope you guys all make a fortune out of this product because it is truly fantastic and the support is the best I have ever encountered.

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