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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
alter index alter table for Index Compression alter table...
- 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 ... you might limit the users...
- SyBooks Online
6 Σεπ 2012 · It is possible to change the column name by: ALTER TABLE "tableName" ALTER "columnName" TO "NewColumnName";
Syntax: ALTER TABLE tablename ALTER [COLUMN] colname DROP DEFAULT. Example: alter table Trees alter Girth drop default. An error is raised if you use DROP DEFAULT on a column that doesn't have a default or whose effective default is domain-based. ALTER COLUMN: SET DEFAULT. Available in: DSQL. Added in: 2.0.
How to rename a database table? This is not possible. You have two options: 1. Create a new table with a different name. You can use your favorite administration tool to extract DDL statement for the old table and just replace the table name.
alter table table_name drop partition partition_name [, partition_name]... Parameters table_name. is the name of the table to change. Specify the database name if the table is in another database, and specify the owner’s name if more than one table of that name exists in the database.
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.
Syntax: ALTER TABLE tablename ALTER [COLUMN] colname POSITION <newpos> <newpos> ::= an integer between 1 and the number of columns. Example: alter table Stock alter Quantity position 3. Note. Don't confuse this with the POSITION in CREATE/ALTER TRIGGER. Trigger positions are and will remain 0-based.
