SELECT sql code example

Example 1: sql selet

SELECT *
FROM table
WHERE condition
GROUP BY expression
HAVING condition
{ UNION | INTERSECT | EXCEPT }
ORDER BY expression
LIMIT count
OFFSET start

Example 2: sql select syntax

select [all/distinct] <COL1>, <COL2>, <COL3>
from <TABLE_NAME>
[join <JOIN_CONDITION>]
[where <CONDITION>]
[group by <COLUMN_NAME>]
[having <SEARCH_CONDITION>]
[order by <SORT_SPECIFICATION>]


/*
Specifically for SQL -> Oracle

LEGEND: 
[...]   :   optional entries
<...>   :   your specific entry
*/

Example 3: sql select

SELECT * FROM TABLE_NAME;

Example 4: between sql

#The BETWEEN operator selects a range of data between two values. The values can be numbers,
#text, or dates. 
syntax->SELECT column_name(s)
FROM table_name
WHERE column_name
BETWEEN value1 AND value2 
///example///
SELECT * FROM Persons
WHERE LastName
BETWEEN 'Hansen' AND 'Pettersen'

Example 5: how select from db

SELECT columname FROM tablename

Example 6: return columns from table sql

SELECT *
FROM INFORMATION_SCHEMA.COLUMNS -- INFORMATION_SCHEMA is an ANSI-standard (American National Standard Institute) set of read-only views which provide information about all of the tables, views, columns, and procedures in a database
WHERE TABLE_NAME = N'Customers' -- "N" defines the subsequent string (the string after the N) as being in unicode