sql all columns
-- MySQL
SELECT *
FROM INFORMATION_SCHEMA.COLUMNS;
-- SQL Server (possible solution)
SELECT *
FROM SYS.COLUMNS;
-- Oracle
SELECT *
FROM ALL_TAB_COLS; -- (If you only want user-defined columns)
-- ALL_TAB_COLS : only user-defined columns
-- ALL_TAB_COLUMNS : both user-defined AND system columnssql 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
*/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 unicodeCopyright © 2021 Codeinu
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