* queryString: original source text of command * context: identifies source of statement (toplevel client command, * non-toplevel client command, subcommand of a larger utility command) * params: parameters to use during execution * dest: where to send results * completionTag: points to a buf...
In Postgres, theDROP USERcommand is used to delete or drop a single user or multiple users simultaneously. To delete a single user, specify the DROP USER statement followed by the user name to be deleted. To delete multiple users simultaneously, use the comma-separated syntax for the DROP US...
How to Drop a Tablespace in PostgreSQL? We can drop a tablespace in Postgres. The basic syntax for dropping the tablespace is given as: DROPTABLESPACE[IFEXISTS] tabsp_name; In this syntax: ● We write the commandDROP TABLESPACEto drop the tablespace. ● TheIF EXISTSclause is also written ...
First, open the Command Prompt or Terminal on a Unix-like system and create a new directory for the tablespace such as C:\pgdata\demo: mkdir C:\pgdata\sample Next, connect to the PostgreSQL server: psql -U postgres Then, create a new tablespace called sample_ts: CREATE TABLESPACE sample...
TRUNCATEcannot be used on a table that has foreign-key references from other tables, unless all such tables are also truncated in the same command. Checking validity in such cases would require table scans, and the whole point is not to do one. ...
TRUNCATE cannot be used on a table that has foreign-key references from other tables, unless all such tables are also truncated in the same command. Checking validity in such cases would require table scans, and the whole point is not to do one. ...
Just like the other databases here, there is no MySQL “delete database” command specifically, but the Drop Database command is used to drop or delete a database. PostgreSQL Drop Database The command to drop a database in PostgreSQL is Drop Database. The syntax looks like this: ...
First, open Command Prompt on Windows or Terminal on Unix-like systems and connect to the PostgreSQL server using psql: psql -U postgres Second, drop the database hr using the following DROP DATABASE statement: DROP DATABASE hr; 2) Removing a non-existing database example The following examp...
ALGORITHM [=] {DEFAULT|INPLACE|COPY} lock_option: LOCK [=] {DEFAULT|NONE|SHARED|EXCLUSIVE} Drop Index in PostgreSQL 9.3.13 DROP INDEX -- remove an index Syntax: DROP INDEX [ CONCURRENTLY ] [ IF EXISTS ] name [, ...] [ CASCADE | RESTRICT ] ...
COMPATIBILITY TheDROP TRIGGERstatement in PostgreSQL is incompatible with the SQL standard. In the SQL standard, trigger names are not local to tables, so the command is simply DROP TRIGGERname. SEE ALSO CREATE TRIGGER [create_trigger(7)]