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Check the database and table name: make sure you are using the correct database and table name. MySQL is case sensitive on some operating systems (such as Linux), so make sure the case of the letters matches.
Check your database connection: make sure you are connecting to the correct database. Try running USE database_name; before running a query on a table.
Check the existence of a table: run SHOW TABLES; in the database to make sure the table actually exists. If the table is missing, you will need to create or restore it.
Check permissions: make sure the user you are running queries under has sufficient permissions to access the table. Run SHOW GRANTS FOR 'username'@'host'; to view the user's permissions.
Caching issues: sometimes MySQL may cache information about tables. Try restarting the MySQL server or clearing the cache if possible.
Schema name in query: if you use a qualified table name (such as database.table), make sure there are no extra spaces or typos between the database name and the table.
Configuration issues: check your MySQL configuration file (my.cnf or my.ini) for settings that may affect table availability, such as lower_case_table_names.
Check for corrupted tables: if you suspect that a table may be corrupted, you can use the CHECK TABLE table_name; command and, if necessary, REPAIR TABLE table_name;.
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Отправлено: 11:25, 27-10-2024
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