Import data

Import someone else's data.

schema:scott

DROP TABLE employeeParking;
DROP TABLE employeeCopy;

 CREATE TABLE employeeParking(
  id TEXT,
  parkingSpace TEXT );
INSERT INTO employeeParking VALUES ('E01','F8');
INSERT INTO employeeParking VALUES ('E02','G22');
INSERT INTO employeeParking VALUES ('E03','F7');
CREATE TABLE employeeCopy (
  id TEXT,
  name VARCHAR(20),
  phone INTEGER );
INSERT INTO employeeCopy VALUES ('E01','Harpo',2753);
INSERT INTO employeeCopy VALUES ('E02','Zeppo',2754);
INSERT INTO employeeCopy VALUES ('E03','Groucho',2755);

CREATE VIEW testCopy AS
SELECT employeeParking.id, COALESCE(name, employeeParking.id) AS name,
COALESCE(phone, 'Not Available') AS phone, parkingSpace
FROM employeeParking LEFT OUTER JOIN
employeeCopy ON (employeeParking.id = employeeCopy.id)

SQL HACKS

Hack 10 Converting subqueries into joins

Hack 11 Converting aggregate subqueries into joins

Hack 14 Generate Combinations

Hack 16 Search for a String across columns

Hack 24 Multiply Across a Result Set

Hack 25 Keep a running total

Hack 25.5 Splitting and combining columns

Hack 26 Include the rows your JOIN forgot

Hack 30 Calculate the maximum/minimum of two fields

Hack 33 Get values and subtotals in one shot

Hack 50 Combine tables containing different data

Hack 51/52 Display rows as columns

Hack 55 Import Someone Else's Data

Hack 62 Issue Queries Without Using a Table

Hack 63 Generate rows without tables

Hack 70 Combine your queries

Hack 72 Extract a subset of the results

Hack 78 Break it down by Range

Hack 88 Test two values from a subquery

Hack 98 Find and stop long running queries

Hack 100 Run SQL from a Web Page