sql constraint check value in list
ALTER TABLE <table>
ADD CONSTRAINT chk_val CHECK (col in ('yes','no','maybe'))
sql constraint check value in list
ALTER TABLE <table>
ADD CONSTRAINT chk_val CHECK (col in ('yes','no','maybe'))
sql BETWEEN
/*the BETWEEN operator is used to filter the result set within
a certain range. the values can be numbers, texts or dates */
SELECT column_name(s)
FROM table_name
WHERE column_name BETWEEN value1 AND value2;
sql between
SELECT column_name(s)
FROM table_name
WHERE column_name BETWEEN value1 AND value2;
between sql
#The BETWEEN operator selects a range of data between two values. The values can be numbers,
#text, or dates.
syntax->SELECT column_name(s)
FROM table_name
WHERE column_name
BETWEEN value1 AND value2
///example///
SELECT * FROM Persons
WHERE LastName
BETWEEN 'Hansen' AND 'Pettersen'
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