mysql add column default value
ALTER TABLE table1 ADD COLUMN foo INT DEFAULT 0;
mysql add column default value
ALTER TABLE table1 ADD COLUMN foo INT DEFAULT 0;
how to update an attribute in MySQL
UPDATE table_name
SET variable = 'changed field', variable = 'another changed field'
WHERE firstline_name = 1;
mysql change value
UPDATE [LOW_PRIORITY] [IGNORE] table_name
SET
column_name1 = expr1,
column_name2 = expr2,
...
[WHERE
condition];
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