“Finden Sie Duplikate MySQL” Code-Antworten

Finden Sie Duplikate MySQL -Säule

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

Finden doppelter Zeilen MySQL

SELECT varchar_col
FROM table
GROUP BY varchar_col
HAVING COUNT(*) > 1;
Itchy Iguana

Finden Sie doppelte Schlüssel in MySQL

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

Finden Sie Duplikate MySQL

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

Wählen Sie, wo mySQL dupliziert

SELECT 
    col1, COUNT(col1),
    col2, COUNT(col2)
FROM
    table_name
GROUP BY 
    col1, 
    col2
HAVING 
       (COUNT(col1) > 1) AND 
       (COUNT(col2) > 1);
Xanthous Xenomorph

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

Ähnliche Antworten wie “Finden Sie Duplikate MySQL”

Fragen ähnlich wie “Finden Sie Duplikate MySQL”

Weitere verwandte Antworten zu “Finden Sie Duplikate MySQL” auf Sql

Durchsuchen Sie beliebte Code-Antworten nach Sprache

Durchsuchen Sie andere Codesprachen