Quick Answer: How do you drop a type in PL SQL?

How do you drop a type in SQL?

Remove an alias data type or user-defined type (CLR) from the current database. Syntax DROP TYPE [schema.] type [ ; ] Key type Name of the type (alias or user-defined) to be dropped. When a table is dropped, all associated triggers are automatically dropped.

How do you drop an object in PL SQL?

Use the DROP TYPE statement to drop the specification and body of an object type, a varray, or a nested table type. See Also: DROP TYPE BODY for information on dropping just the body of an object type.

How do I drop a column in PL SQL?

Physical Delete

To physically drop a column you can use one of the following syntaxes, depending on whether you wish to drop a single or multiple columns. alter table table_name drop column column_name; alter table table_name drop (column_name1, column_name2);

What is drop command in Oracle?

Purpose. Use the DROP TABLE statement to move a table or object table to the recycle bin or to remove the table and all its data from the database entirely.

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How do you drop a procedure?

The procedure must be in your own schema or you must have the DROP ANY PROCEDURE system privilege. Specify the schema containing the procedure. If you omit schema , then Oracle Database assumes the procedure is in your own schema. Specify the name of the procedure to be dropped.

How do I delete type?

Press the “Ins” key to toggle overtype mode off. Depending on your keyboard model, this key may also be labeled “Insert.” If you simply want to disable overtype mode but keep the ability to toggle it back on, you are done.

How do you drop a pkg?

To drop a package, you use the DROP PACKAGE statement with the following syntax:

  1. DROP PACKAGE [BODY] schema_name.package_name;
  2. DROP PACKAGE BODY order_mgmt;
  3. DROP PACKAGE order_mgmt;

How do you drop a user object in Oracle?

In order to drop a user, you must have the Oracle DROP USER system privilege. The command line syntax for dropping a user can be seen below: DROP USER edward CASCADE; If a user owns any database objects, that user can only be dropped with the Oracle DROP USER CASCADE command.

What Is syntax for dropping package?

DROP PACKAGE [ BODY ] package_name; If the keyword, BODY, is omitted, both the package specification and the package body are deleted – i.e., the entire package is dropped. If the keyword, BODY, is specified, then only the package body is dropped. The package specification remains intact.

How do I drop a column in SQLite?

DB Browser for SQLite allows you to add or drop columns. In the main view, tab Database Structure , click on the table name. A button Modify Table gets enabled, which opens a new window where you can select the column/field and remove it.

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How do you drop a column?

SQL Drop Column Syntax

  1. ALTER TABLE “table_name” DROP “column_name”;
  2. ALTER TABLE “table_name” DROP COLUMN “column_name”;
  3. ALTER TABLE Customer DROP Birth_Date;
  4. ALTER TABLE Customer DROP COLUMN Birth_Date;
  5. ALTER TABLE Customer DROP COLUMN Birth_Date;

How do I drop a column in a table?

The syntax to drop a column in a table in MySQL (using the ALTER TABLE statement) is: ALTER TABLE table_name DROP COLUMN column_name; table_name.

How do I drop a table in Oracle?

Drop a Table

  1. Execute the DROP TABLE command to drop the table. SQL>drop table hr. regions_hist; Table dropped.
  2. Query the HR. REGIONS_HIST table. SQL>select * from hr.regions_hist; select * from hr.regions_hist * ERROR at line 1: ORA-00942: table or view does not exist.

How do I drop a table in SQL Developer?

To delete a table:

  1. In SQL Developer, navigate to the PURCHASE_ORDERS table in the HR schema, following the instructions in “Viewing Tables”.
  2. Right-click the PURCHASE_ORDERS table and select Table and then Drop. The Drop dialog box appears.

How do I drop a constraint in Oracle?

Drop Unique Constraint

The syntax for dropping a unique constraint in Oracle is: ALTER TABLE table_name DROP CONSTRAINT constraint_name; table_name. The name of the table to modify.

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