Αποτελέσματα Αναζήτησης
6 Οκτ 2008 · You can use the following command to rename the column of any table in SQL Server: exec sp_rename 'TableName.OldColumnName', 'New colunmName'
The ALTER TABLE statement changes table attributes (column definitions and constraints) in a table that was previously created. The syntax allows a list of alter clauses; however, only one table constraint or column constraint can be added, modified, or deleted in each ALTER TABLE statement.
The ALTER TABLE statement changes table attributes (column definitions, constraints, and so on) in an existing table. The database server keeps track of object dependencies in the database. Alterations to the schema of a table may impact dependent views.
To rename a column in a table, use the following syntax: ALTER TABLE table_name. RENAME COLUMN old_name to new_name; To rename a column in a table in SQL Server, use the following syntax: SQL Server: EXEC sp_rename 'table_name.old_name', 'new_name', 'COLUMN'; ALTER TABLE - ALTER/MODIFY DATATYPE.
Use alter table to modify an existing column. You can modify any number of columns in a single alter table statement. For example, this command changes the datatype of the type column in the titles table from char (12) to varchar (20) and makes it nullable:
28 Ιουν 2012 · To alter any table in order to change the datatype of some field : ALTER TABLE <table_name> MODIFY <column_name> <new_datatype>. For example: In order to change the datatype of any column 'emp_id' from int to varchar, you need to : ALTER TABLE employee MODIFY emp_id varchar(10)
The RazorSQL alter table tool includes a Rename Column option for renaming an Sybase database table column. The rename column option allows the user to type in a new name for the column being renamed. The tool then generates and can execute the SQL to rename the column on the table.
