css in sql query
SELECT 'test1' AS [@class]
, ( SELECT 'test2' as [@class]
, (SELECT 'Name' FOR XML PATH(''))
FOR XML PATH('td'), type)
,(SELECT 'test3' as [@class]
, (SELECT 'Value' FOR XML PATH(''))
FOR XML PATH('td'), type)
FOR XML PATH('tr'), typesql 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 unicodesql select statement
Projection = Select the columns in
a table that are returned by a query
Selection = Selects the rows in a
table that are returned by a query
Join = Brings together data that is
stored in different tables by
specifying the link between themsql select statements
SELECT orders.order_id, customers.last_name
FROM orders
INNER JOIN customers
ON orders.customer_id = customers.customer_id
WHERE orders.order_id <> 1
ORDER BY orders.order_id;Copyright © 2021 Codeinu
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