cheeks/practical-sql-2
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Chapter 10 code/listing formatting

Browse Source
This commit is contained in:
anthonydb 2021-08-20 12:29:11 -04:00
parent a129e26d63
commit f9072555df
1 changed files with 10 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
Chapter_10/Chapter_10.sql
View File

@ -141,7 +141,7 @@ ALTER TABLE meat_poultry_egg_establishments ADD COLUMN company_standard text;
UPDATE meat_poultry_egg_establishments UPDATE meat_poultry_egg_establishments
SET company_standard = company; SET company_standard = company;
-- Listing 10-14: Use UPDATE to modify column values that match a string -- Listing 10-14: Using an UPDATE statement to modify column values that match a string
UPDATE meat_poultry_egg_establishments UPDATE meat_poultry_egg_establishments
SET company_standard = 'Armour-Eckrich Meats' SET company_standard = 'Armour-Eckrich Meats'
@ -197,16 +197,16 @@ FROM meat_poultry_egg_establishments
GROUP BY st, inspection_deadline GROUP BY st, inspection_deadline
ORDER BY st; ORDER BY st;
-- Listing 10-21: Delete rows matching an expression -- Listing 10-21: Deleting rows matching an expression
DELETE FROM meat_poultry_egg_establishments DELETE FROM meat_poultry_egg_establishments
WHERE st IN('AS','GU','MP','PR','VI'); WHERE st IN('AS','GU','MP','PR','VI');
-- Listing 10-22: Remove a column from a table using DROP -- Listing 10-22: Removing a column from a table using DROP
ALTER TABLE meat_poultry_egg_establishments DROP COLUMN zip_copy; ALTER TABLE meat_poultry_egg_establishments DROP COLUMN zip_copy;
-- Listing 10-23: Remove a table from a database using DROP -- Listing 10-23: Removing a table from a database using DROP
DROP TABLE meat_poultry_egg_establishments_backup; DROP TABLE meat_poultry_egg_establishments_backup;
@ -252,8 +252,11 @@ FROM meat_poultry_egg_establishments;
-- Listing 10-26: Swapping table names using ALTER TABLE -- Listing 10-26: Swapping table names using ALTER TABLE
ALTER TABLE meat_poultry_egg_establishments RENAME TO meat_poultry_egg_establishments_temp; ALTER TABLE meat_poultry_egg_establishments
ALTER TABLE meat_poultry_egg_establishments_backup RENAME TO meat_poultry_egg_establishments; RENAME TO meat_poultry_egg_establishments_temp;
ALTER TABLE meat_poultry_egg_establishments_temp RENAME TO meat_poultry_egg_establishments_backup; ALTER TABLE meat_poultry_egg_establishments_backup
RENAME TO meat_poultry_egg_establishments;
ALTER TABLE meat_poultry_egg_establishments_temp
RENAME TO meat_poultry_egg_establishments_backup;