Good morning all,
We have 12 customer lists: CA01, CA02,
.,CA12.
Table: customerList
+-----------+------+
| list_name | id |
+-----------+------+
| CA10 | 20BE |
| CA07 | 20BE |
| CA11 | 20BE |
| CA03 | 20BE |
| CA10 | NQCR |
| CA04 | NQCR |
| CA02 | MVYK |
| CA10 | 0BEC |
|
AND SO ON. |
+-----------+------+
Each list has 25 to 350 customers. Same customer_id may exist in multiple
lists. We need to compare CA10 list customer_ids with other 11 lists to find
matching id count by list_name. The query output should be something similar
below:
+------+-----------+
| list_name |count |
+------+-----------+
| CA05 | 60 |
| CA07 | 42 |
| CA01 | 35 |
| CA03 | 28 |
| CA09 | 15 |
|
AND SO ON
|
+-----------+------+
Can this be done with a SELECT statement without using perl or php?
Thanks in advance for any help.
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