“Mysql wiederholte Werte” Code-Antworten

Finden Sie Duplikate MySQL -Säule

SELECT name, COUNT(*) c FROM table GROUP BY name HAVING c > 1;
Enthusiastic Elephant

Finden Sie Duplikate MySQL

SELECT 
    col, 
    COUNT(col)
FROM
    table_name
GROUP BY col
HAVING COUNT(col) > 1;
Auuntoo

MySQL Finden Sie Duplikate in derselben Tabelle

## Find ALL duplicate recods by value (without grouping them by value) ##
# to find the duplicate, 
# replace all instances of tableName with your table name
# and all instances of duplicateField with the field name where you look for duplicates
SELECT t1.*
FROM tableName AS t1
INNER JOIN(
	SELECT duplicateField
	FROM tableName
	GROUP BY duplicateField
	HAVING COUNT(duplicateField) > 1
)temp ON t1.duplicateField = temp.duplicateField
order by duplicateField
Yoshkinawa

Mysql wiederholte Werte


            
                
            
         SELECT 
    col, 
    COUNT(col)
FROM
    table_name
GROUP BY col
HAVING COUNT(col) > 1;
Code language: SQL (Structured Query Language) (sql)
Smiling Sable

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