Answers for "unique in mysql"

SQL
3

mysql set field unique

ALTER TABLE mytbl ADD UNIQUE (columnName);
Posted by: Guest on March-06-2020
1

mysql query unique column

SELECT DISTINCT(column_name) FROM your_table_name;

#You can select distinct values for one or more columns. The column names has to be separated with comma.
SELECT DISTINCT column_name_1, column_name_2 FROM your_table_name;
Posted by: Guest on May-03-2021

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