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SELECT *
FROM category
WHERE category_id = 2
AND
name = 'Comedy';
SELECT *
FROM category
WHERE category_id = 2
AND
name = 'Animation';
SELECT *
FROM category
WHERE category_id = 2
AND
name = 'Animation'
AND
DATE(last_update) = '2006-02-15';
SELECT *
FROM category
WHERE category_id = 2
AND
name = 'Animation'
AND
DATE(last_update) = '2006-02-14'; -- oops, different day
ALTER TABLE a_tab
ADD COLUMN (
name_col VARCHAR(30) DEFAULT 'not sure',
age_col INTEGER DEFAULT NULL,
another_col TEXT
);
SELECT CONCAT('And the winner is: ', first_name,' ', last_name) AS full_name
FROM actor
LIMIT 5;
SELECT CONCAT(first_name,' ', last_name) AS full_name
FROM actor
LIMIT 5;
SELECT CONCAT(first_name, last_name) AS full_name
FROM actor
LIMIT 5;
SELECT first_name, ' ', last_name
FROM actor
LIMIT 5;
SELECT CONCAT() AS full_name FROM actor LIMIT 5; Error Code: 1582. Incorrect parameter count in the call to native function 'CONCAT'