MySQL [Err] 1292-Truncated incorrect DOUBLE value: 'Cao Weijun'

sqm_ TBL table

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sqm_fytj

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create table test as 
SELECT
    *
FROM
    (
        SELECT
            CURDATE() || "" AS "balance_date",
            t.belonging_user || "" AS "belonging_name",
            sum(t.total_deal_valid) AS "total_deal_valid",
            FORMAT(sum(t.code_profit), 2) AS "total_code_profit",
            sum(t.code_material) AS "total_code_material"
        FROM
            sqm_tbl t
        GROUP BY
            belonging_user
    ) a
WHERE
    a.total_code_profit != "-";
Is

a data type error?
Please give me your advice!

Mar.17,2021
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1bf868c-31876.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1bf868c-31876.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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