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Is there any way to insert rows into a temporary table after creating it via SELECT statement in MySQL? I have this query that works as expected:

SELECT goldusers_user_ci.user_id, goldusers_users.username, goldusers_user_ci.contact_value
FROM goldusers_users
INNER JOIN goldusers_user_ci
ON goldusers_users.id = goldusers_user_ci.user_id
ORDER BY user_id

The idea is to select this query as a temporary table and add one row to it, like so:

SELECT * FROM(
SELECT goldusers_user_ci.user_id, goldusers_users.username, goldusers_user_ci.contact_value
FROM goldusers_users
INNER JOIN goldusers_user_ci
ON goldusers_users.id = goldusers_user_ci.user_id
ORDER BY user_id
) AS DBusers
INSERT INTO DBusers(user_id,username)
VALUES(-1,"All")

However, I get a syntax error. Is there any way to do this?

**Edit: I believe I actually need to do a union after the select: ***the issue is the placement of the ORDER BY statement. Moving it to the bottom works

SELECT goldusers_user_ci.user_id, goldusers_users.username, goldusers_user_ci.contact_value
FROM goldusers_users
INNER JOIN goldusers_user_ci
ON goldusers_users.id = goldusers_user_ci.user_id
UNION ALL
SELECT -1 as user_id, "All" as username, "" as contact_value
ORDER BY user_id
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6
  • The syntax is INSERT INTO tablename (columns...) SELECT .... Commented Oct 21, 2021 at 19:06
  • See the documentation for INSERT Commented Oct 21, 2021 at 19:07
  • AS DBusers doesn't create a temporary table. Commented Oct 21, 2021 at 19:17
  • @Barmar Yes, maybe I do not need a temporary table. I am looking to add one row to the query after the select statements. Commented Oct 21, 2021 at 19:29
  • Then use UNION. Commented Oct 21, 2021 at 19:30

2 Answers 2

Reset to default
0

How about something like this?

SELECT * 
INTO #TempTable
FROM(
        SELECT goldusers_user_ci.user_id, goldusers_users.username, goldusers_user_ci.contact_value
        FROM goldusers_users
        INNER JOIN goldusers_user_ci
        ON goldusers_users.id = goldusers_user_ci.user_id
        
        UNION ALL
        
        SELECT -1, 'All', ''
) AS DBusers

SELECT *
FROM #TempTable

DROP TABLE #TempTable
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4 Comments

MySQL doesn't use # before temporary table names.
yeah my bad. Create a table first, replace #TempTable with the table.
MySQL doesn't use FROM in INSERT INTO statements.
It seems like you're giving the SQL-Server answer.
0

I cannot test what you want, but base on your query, I think you want to Insert data after select data.

SELECT * FROM(
SELECT goldusers_user_ci.user_id, goldusers_users.username, goldusers_user_ci.contact_value
FROM goldusers_users
INNER JOIN goldusers_user_ci
ON goldusers_users.id = goldusers_user_ci.user_id
ORDER BY user_id
) AS DBusers;
INSERT INTO DBusers(user_id,username)
VALUES(-1,"All");

I think you just need to add semicolon ;

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2 Comments

The first query above works without the semicolon, but adding the semicolon to the second does not solve the issue.
@marksy95 The semicolon is needed to show where the first query ends and the second query starts.

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