Add New Row - ✔✔INSERT INTO table_name (column1, column2, ...)
VALUES (value1, value2, value3, ...);
Update Row - ✔✔UPDATE table_name
SET column1 = value1, column2 = value2, ...
WHERE condition;
Delete Row - ✔✔DELETE FROM table_name
WHERE condition;
Inner Join - ✔✔SELECT column_name(s)
FROM table1
INNER JOIN table2
ON table1.column_name = table2.column_name;
CREATE VIEW - ✔✔CREATE VIEW viewname AS
SELECT Col1, Col2
FROM table
WHERE condition;
Concatenate - ✔✔CONCAT(Col1, Col2) AS NewColumnName;
Create Index - ✔✔CREATE INDEX index_name
ON table_name (column1, column2, ...);
Create Database - ✔✔CREATE DATABASE databasename;
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller eustacemaina122. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.