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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.
- SyBooks Online
\SOFTWARE\SYBASE\Server\server_name...
- Identity_Insert Option
A table name must be specified to identify the column to...
- Alter User Statement
ALTER USER statement Description. Changes user settings....
- Create Table Statement
CREATE TABLE statement Description. Creates a new table in...
- Alter Service Statement
ALTER SERVICE service-name ... HTML The result set of a...
- SyBooks Online
Description. Adds new columns to a table; drops or modifies existing columns; adds, changes, or drops constraints; changes properties of an existing table; enables or disables triggers on a table.
ALTER TABLE statement. Modifies a table definition or disables dependent views. ALTER TABLE [owner.] table-name { alter-clause, ... alter-clause : ADD create-clause . | ALTER column-name column-alteration . | ALTER [ CONSTRAINT constraint-name ] CHECK ( condition ) . | DROP drop-object . | RENAME rename-object . | table-alteration.
29 Σεπ 2012 · Syntax The syntax to rename a table in MySQL is: ALTER TABLE table_name RENAME TO new_table_name; Example Let's look at an example that shows how to rename a table in MySQL using the ALTER TABLE statement. or example: ALTER TABLE contacts RENAME TO people;
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.
Component Integration Services forwards the following syntax to a server configured as class sql_server: alter table [database.[owner].]table_name {add column_name datatype [{identity | null}] {[, next_column]}...} | [drop column_name [, column_name]} | modify column_name [data_type] [NULL] | [not null]] [, column_name]}
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.
