How do I SELECT an existing table in SQL?

How do I select a table from a SQL database?

SELECT statements SELECT column1, column2 FROM table1, table2 WHERE column2='value'; In the above SQL statement: The SELECT clause specifies one or more columns to be retrieved; to specify multiple columns, use a comma and a space between column names. To retrieve all columns, use the wild card * (an asterisk).

How do I select a specific table from a database?

Using the Information Schema1SELECT TABLE_NAME FROM INFORMATION_SCHEMA. TABLES.2SELECT TABLE_NAME, COLUMN_NAME FROM INFORMATION_SCHEMA. COLUMNS.3SELECT COLUMN_NAME FROM INFORMATION_SCHEMA. COLUMNS WHERE TABLE_NAME = 'Album'4IF EXISTS( SELECT * FROM INFORMATION_SCHEMA. ... 5IF EXISTS( SELECT * FROM INFORMATION_SCHEMA.

How do I edit an existing table in SQL?

To change the data type of a column in a table, use the following syntax:1SQL Server / MS Access: ALTER TABLE table_name. ALTER COLUMN column_name datatype;2My SQL / Oracle (prior version 10G): ALTER TABLE table_name. MODIFY COLUMN column_name datatype;3Oracle 10G and later: ALTER TABLE table_name.

How do I select another table in SQL?

Example syntax to select from multiple tables:1SELECT p. p_id, p. cus_id, p. p_name, c1. name1, c2. name2.2FROM product AS p.3LEFT JOIN customer1 AS c1.4ON p. cus_id=c1. cus_id.5LEFT JOIN customer2 AS c2.6ON p. cus_id = c2. cus_id.