MYSQL - do not add duplicates depending on another field value
26856
How do I specify unique constraint for multiple columns in MySQL?
24775
MySQL Group_Concat Repeating Values
97129
MySQL case sensitive query
32901
Adding a constraint to prevent duplicates in SQL Update Trigger
110974
Switch id numbers of two rows in MySql
69795
Can you split/explode a field in a MySQL query?
62921
Check constraint references another column in same table
40249
How to use mysql JOIN without ON condition?
88569
Increment value based on grouped field
79298
Recalculate a Field with data from another field, ignoring NULL values
10831
Join table depending on value of column in main table
72631
MySQL - Operand should contain 1 column(s)
18575
How to 'insert if not exists' in MySQL?
57539
Deduplicate Data Using Having with Subquery
37741
How do I find duplicate values in a table in Oracle?
77672
MySQL Conditional Insert
49655
Using ALTER to drop a column if it exists in MySQL