How To Rename an Existing Table

Q

How To Rename an Existing Table? - Oracle DBA FAQ - Managing Oracle Database Tables

✍: FYIcenter.com

A

If you don't like the name of an existing table, you change it by using the CREATE TABLE ... RENAME TO statement. Here is a sample script:

SQL> connect HR/fyicenter
Connected.

SQL> CREATE TABLE emp_dept_10
  2  AS SELECT * FROM employees WHERE department_id=10;
Table created.

SQL> ALTER TABLE emp_dept_10 RENAME TO emp_dept_dba;
Table altered.

SQL> SELECT first_name, last_name, salary FROM emp_dept_dba;
FIRST_NAME           LAST_NAME                     SALARY
-------------------- ------------------------- ----------
Jennifer             Whalen                          4400

2007-05-03, 5354👍, 0💬

How To Create a New Table in Your Schema
How To Create a New Table in Your Schema? - Oracle DBA FAQ - Managing Oracle Database Tables If you want to create a new table in your own schema, you can log into the server with your account, and use the CREATE TABLE statement. The following script shows you how to create a table: >.\bin\sqlplus /... 2007-05-03, 5431👍, 0💬

How To Create a Single Index for Multiple Columns
How To Create a Single Index for Multiple Columns? - Oracle DBA FAQ - Managing Oracle Table Indexes If you know a group of multiple columns will be always used together as search criteria, you should create a single index for that group of columns with the "ON table_name(col1, col2, ...)" clause. He... 2007-04-27, 5361👍, 0💬

How To Rename an Existing Table
How To Rename an Existing Table? - Oracle DBA FAQ - Managing Oracle Database Tables If you don't like the name of an existing table, you change it by using the CREATE TABLE ... RENAME TO statement. Here is a sample script: SQL> connect HR/fyicenter Connected. SQL> CREATE TABLE emp_dept_10 2 AS SELEC... 2007-05-03, 5355👍, 0💬

How To Delete a Column in an Existing Table
How To Delete a Column in an Existing Table? - Oracle DBA FAQ - Managing Oracle Database Tables If you have an existing column in a table and you need that column any more, you can delete it with ALTER TABLE ... DROP COLUMN statement. Here is an example SQL script: SQL> CREATE TABLE emp_dept_90 2 AS... 2007-05-03, 5224👍, 0💬

How To Create a New Table by Selecting Rows from Another Table
How To Create a New Table by Selecting Rows from Another Table? - Oracle DBA FAQ - Managing Oracle Database Tables Let's say you have a table with many data rows, now you want to create a backup copy of this table of all rows or a subset of them, you can use the CREATE TABLE...AS SELECT statement to... 2007-05-03, 5221👍, 0💬

How To Rename a Column in an Existing Table
How To Rename a Column in an Existing Table? - Oracle DBA FAQ - Managing Oracle Database Tables Let's say you have an existing with an existing column, but you don't like the name of that column, can you rename that column name? The answer is yes. You can use the ALTER TABLE ... RENAME COLUMN statem... 2007-05-03, 5214👍, 0💬

How To Add a New Column to an Existing Table
How To Add a New Column to an Existing Table? - Oracle DBA FAQ - Managing Oracle Database Tables If you have an existing table with existing data rows, and want to add a new column to that table, you can use the ALTER TABLE ... ADD statement to do this. Here is an example script: SQL> connect HR/fyi... 2007-05-03, 5173👍, 0💬

What Is a Database Table
What Is a Database Table? - Oracle DBA FAQ - Managing Oracle Database Tables A database table is a basic unit of data logical storage in an Oracle database. Data is stored in rows and columns. You define a table with a table name, such as employees, and a set of columns. You give each column a colum... 2007-05-03, 5112👍, 0💬

How To Drop an Existing Table
How To Drop an Existing Table? - Oracle DBA FAQ - Managing Oracle Database Tables If you want to delete an existing table and its data rows, you can use the DROP TABLE statement as shown in this script: SQL> connect HR/fyicenter Connected. SQL> CREATE TABLE emp_dept_10 2 AS SELECT * FROM employees W... 2007-05-03, 4996👍, 0💬

All rights in the contents of this web site are reserved by the individual author. fyicenter.com does not guarantee the truthfulness, accuracy, or reliability of any contents.