Author: codertutor_3o6d0o

PostgreSQL Insert The INSERT statement is used to insert records into a table from a PostgreSQL database. Insert syntax INSERT INTO table_name ( column name1, column name2, column name3, ... ) VALUES ( value1, value2, value3, ... ); INSERT INTO table_name...

PostgreSQL Select The PostgreSQL SELECT statement is used to query records from a table. Select syntax -- select all records from table SELECT * FROM table_name -- select specific columns SELECT column_1, column_2 FROM table_name -- select the records that meet...

PostgreSQL Drop Table The PostgreSQL DROP TABLE is used to delete a table from a database. Drop Table syntax DROP TABLE [ IF EXISTS ] table_name [ CASCADE | RESTRICT ]; Drop Table example CREATE TABLE my_goods ( ID INT, NAME...

PostgreSQL Create Table The PostgreSQL CREATE TABLE is used to create a database table. Create Table syntax CREATE TABLE table_name ( column_name1 datatype, column_name2 datatype, column_name3 datatype, ...); Create Table example CREATE TABLE goods ( ID NUMERIC PRIMARY KEY, GOOD_TYPE VARCHAR(10)...

SQL (Structured Query Language) is a programming language widely used for managing relational databases. It provides a standardized way to interact with databases, allowing users to store, retrieve, update, and delete data efficiently. SQL is a declarative language, meaning that users...