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 ...
InPostgreSQL, theALTER TABLEcommand performs different functionalities on a table. For example, theALTER TABLEstatement can add, drop, or update the table columns. Moreover, it allows us to add or remove constraints to a table. So, all in all, we can say that theALTER TABLEcommand is used...
In theDATABASESsection of the cPanel home screen, clickPostgreSQL Databases: UnderCurrent Databases, locate the database you want to rename. In theActionscolumn, clickRename: TheRename Databasedialog box appears. In theNew nametext box, type the new name for the database: ...
You can physically move default tablespace objects like tables and indexes from the default tablespace to a new custom tablespace. The new default tablespace must be empty for this database, and no one can be connected to the database during this activity. Note: The owner of the database or...
To remove the column we just created, enter this command: ALTER TABLE pg_equipment DROP COLUMN working_order; We can rename the entire table with this command: ALTER TABLE pg_equipment RENAME TO playground_equip; Deleting Tables in PostgreSQL ...
PostgreSQL Tutorials: How To Rename A TableYou 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 ...
Today, in PostgreSQL, we will be learning how to use UTC current time as the default time in our tables in PostgreSQL. UTC stands for COORDINATED UNIVERSAL TIME. It is the UNIVERSAL method of regulating clocks and time worldwide. Local Time Zones have time specified only for a certain locat...
Say you're looking at a PostgreSQL integer column where some rows are null: select day, tickets from stats; day | tickets ---+--- 2018-01-01 | 1 2018-01-02 | null 2018-01-03 | 3 Instead of having that null, you might want that row to be 0. To do that, use the coalesce...
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...
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