You can rename a table in PostgreSQL by using the ‘ALTER TABLE’ command as follows: ALTER TABLE tablename RENAME TO preferredtablename; If the table name has odd characters in it, then a syntax error might be generated which can be solved by placing the table name in double quotes: ...
In order to delete the table from the database, you need to define the name of the table after the DROP TABLE keyword. PostgreSQL throws an error if you delete a non-existent table. To avoid exceptions while deleting such a situation, add the IF EXISTS parameter after the DROP TABLE clau...
How to Drop a Column in PostgreSQL? You have to follow the below-given syntax to drop a column using theALTER TABLEcommand inPostgreSQL: ALTER TABLE tbl_name DROP col_name; - Here, theALTER TABLEcommand/statement is used to drop a column from a table. - Thetbl-nameis the name of the...
PostgreSQLprovides aRENAME COLUMNclause that is used with the collaboration ofALTER TABLEcommand to rename a column. TheRENAME COLUMNcommand allows us to rename a single or multiple columns.PostgreSQLdoesn’t provide the“IF EXISTS”option for the“RENAME COLUMN”command. This write-up will explain ...
Rename To –This keyword is defined as using this keyword, we can change the database name with a different name in PostgreSQL. We have used rename to keyword with alter database statement in PostgreSQL. New database name –This is defined as the new database name, which we have changed...
How to Change Table Data in PostgreSQL We can change the definition of our tables with the following general syntax: ALTER TABLE table_nameAction_TO_Take; For example, we can add a column to our "pg_equipment" table by entering this command: ...
PostgreSQL has rename table statement which is used with rename clause to change the name of an existing table. Syntax: ALTER TABE table_name RENAME to new_table_name; In the above statement, first you specify the existing table name which you want to rename and secondly, specify new table...
How to rename a database in PostgreSQL? To rename a database in PostgreSQL, you can use theALTER DATABASEstatement followed by theRENAME TOclause. For example, to rename a table from "old_name" to "new_name", execute: Copy 1ALTER TABLEold_nameRENAME TOnew_name; ...
To rename a table inOracle SQL, use the ALTER TABLE statement, in the same way as MySQL and PostgreSQL: ALTERTABLEold_nameRENAMETOnew_name; You simply add in your current table name and the new table name and run the command. There’s no need to specify the schema name. ...
CREATE TABLE faveParks( parkName varchar(30), yearBuilt int, firstVisit date, lastVisitdate ); Copy Output Query OK, 0 rows affected (0.01 sec) Keep in mind that this only creates the table’s structure, as you haven’t added any data to the table. ...