Answers for "add column sql with value"

SQL
3

add column table sql default value

ALTER TABLE users
ADD visit_number INT DEFAULT 0;
Posted by: Guest on May-16-2020
0

Insert and initialize a SQL column with value dependent on another column data

UPDATE table
SET col = new_value
WHERE col = old_value
AND other_col = some_other_value;

UPDATE table
SET col = new_value
WHERE col = old_value
OR other_col = some_other_value;
Posted by: Guest on June-29-2020

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