How do return all columns in Table A where an ID column is present in Table B which contains hundreds of ID columns

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I understand how to check if Column ID in Table A is present in Table B Column X.

But is there a way to return all rows in Table A in which it does NOT match a single Identifier in Table B?

In reality, Table B contains hundreds of columns.

Table A:

+------------+------+--------+----------------+
| Title Name |  ID  | Region | Numeric Column |
+------------+------+--------+----------------+
| Sam        | B021 | NA     |           5.99 |
| Brook      | B026 | EU     |           5.99 |
| Harry      | B032 | KOR    |          10.99 |
+------------+------+--------+----------------+

Table B:

+------+-------+-------+
| SAM  | BROOK | HARRY |
+------+-------+-------+
| B021 | B024  | B030  |
| 1    | B025  | B031  |
| 2    | 4     |       |
| 3    |       |       |
+------+-------+-------+

So in this instance, I would like my query to SELECT Rows 2 & 3 in Table A.

Using a NOT EXISTS could work.

SELECT *
FROM TableA a
WHERE NOT EXISTS 
(
    SELECT 1
    FROM TableB b
    WHERE a.ID IN (b.SAM, b.BROOK, b.HARRY)
);

Chapter 16 SQL Data Manipulation Language – Database Design , SELECT – to query data in the database; INSERT – to insert data into a table; UPDATE If a clause has several parts, they should appear on separate lines and be All trailing spaces are removed from data inserted into varchar columns , To insert rows into a table with an IDENTITY column, follow the below example. I am using this but it is taking long time. Table contains around 3 million records select a.* from demo_test a, demo_test b where a.column_1 = b.columns_1 and a.column_2 = b.column_2 and a.column_3 != b.column_3 and a.status is null Please suggest if you have a better option and indexes if I have to make.

I would use the NOT IN function to where,

SELECT * FROM TABLE A 
WHERE col_A NOT IN (SELECT col_A
                    FROM TABLE B)

This will return all the rows from TABLE A where the val of col_A is not in TABLE B col_A

Hope this is helpful!

SQL Server SELECT, this tutorial introduces you to the basic of the SQL Server SELECT statement, In a table, each row represents a unique record and each column represents a field in the customers table contains customer data such as customer identification To get data from all columns of a table, you can specify all the columns in the� There isn't a straightforward way of doing so like there would be with counting rows. Basically, you have to enumerate all the columns that might be null in one expression. So for a table with possibly null columns a, b, c, you could do this: SELECT key_column, COALESCE(a,0) + COALESCE(b,0) + COALESCE(c,0) null_col_count FROM my_table

I think that one way or another, you will need to enumerate the columns that you want to search.

I would go for the left join antipattern, that, allows you to (safely) use the in operator:

select ta.*
from tableA ta
left join tableB tb on ta.id in (tb.sam, tb.brook, tb.harry) 
where coalesce(tb.sam, tb.brook, tb.harry) is null

If you have a column in tableB that is not null (say, column never_null), the where clause can be simplfied:

select ta.*
from tableA ta
left join tableB tb on ta.id in (tb.sam, tb.brook, tb.harry) 
where tb.never_null is null

SQL joins and how to use them, This would return us the first two rows from that table, containing information such as the Since the id 1 for the color Red appears twice in the color_id column of our Looking at our example, selecting columns from our virtual join table is In the code above, the NOT IN clause compares the current user_id to all of the� Vlookup return value in adjacent cell in Excel. For example, you have two columns as shown in following screenshot. To vlookup the largest weight in column A and return the adjacent cell value of column B, please do as follows. 1. Select a blank cell (here I select cell C3), enter the below formula into it, and then press the Enter key.

I think you are looking for.

UNION doesn't work

SO

SELECT * 
FROM tablea 
Where `ID` NOT IN (SELECT HARRY FROM tableb)
OR `ID` NOT IN ( SELECT SAM FROM tableb ) 
OR `ID` NOT IN (SELECT HARRY FROM tableb)

DBfiddle https://dbfiddle.uk/?rdbms=mysql_8.0&fiddle=333a6d2605f881299d888e774fd41c44

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Comments
  • SELECT selects rows, not columns. Of course, you can specify the columns (or expressions) that you want, but what is returned are rows.