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Sybase » DDL » Design »

Modifying a Colunm

     




With Sybase 12.1.X and higher, a column type can be altered. You need to be dbo and have select into turned on, in the database defaults.



create table employee (
emp_id integer not null,
salary money default 0,
hire_dt datetime default getdate(),
last_name varchar(5) null
)
go


/* make the name column longer */

alter table employee modify last_name varchar(80) not null
go


/* rename the column (works with Sybase 11 and 12) */

sp_rename 'employee.last_name',last_nm
go





Sybase : Related Topics

Sybase : DDL : Sybase data types
Sybase : DDL : Creating a table
Sybase : DDL : Altering a table
Sybase : DDL : Creating an index
Sybase : DDL : Clustered vs non-clustered indexes
Sybase : DDL : Creating a constraint
Sybase : DDL : Table Partitioning
Sybase : DDL : Alter a column

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