Sql statements can be executed in database graphics software, but not in myeclipse

if you want to query the data with an index in the database, the
sql statement is SELECT * FROM opot.tjopot WHERE MATCH ( ZSD1 ) AGAINST ("division and multiplication of rational numbers")
this statement can query the results in mysqlworkbench, but can not be found in myeclipse. Resultset has been asking for null, what is the situation, is there any solution

Mar.04,2021

first confirm that mysql workbench and the application are connected to a database;
then print the statements run by sql in the log to see if there is a problem of garbled Chinese characters.

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-64f5-1b3198e-2bdb0.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3198e-2bdb0.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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