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Usage. 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.
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\SOFTWARE\SYBASE\Server\server_name...
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ALTER SERVICE service-name ... HTML The result set of a...
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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'
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.
alter table. 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, changes the compression level of a table.
The ALTER TABLE statement is used to add, delete, or modify columns in an existing table. The ALTER TABLE statement is also used to add and drop various constraints on an existing table. ALTER TABLE - ADD Column. To add a column in a table, use the following syntax: ALTER TABLE table_name. ADD column_name datatype;
alter table. 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. Syntax.
Modifies a table definition. Syntax. ALTER TABLE [ owner .] table-name . { ADD column-definition [ column-constraint ]... | ADD table-constraint . | MODIFY column-definition . | MODIFY column-name [ IDENTITY ] [ DEFAULT AUTOINCREMENT ] [ NOT ] NULL . | MODIFY column-name [ CONSTRAINT constraint-name ] CHECK NULL .
