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https://dev.mysql.com/doc/refman/8.0/en/charset-connection.html
The server sends responses, such as result sets or error messages, over the connection back to the client. Connection Character Set and Collation System Variables Impermissible Client Character Sets Client Program Connection Character Set ... A ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-programs-ndb-import.html
Table 25.35 Command-line options used with the program ndb_import Format Description Added, Deprecated, or Removed --abort-on-error Dump core on any fatal error; used for debugging (Supported in all NDB releases based on MySQL 8.0) --ai-increment=# ... ndb_import imports CSV-formatted data, such as that produced by mysqldump --tab, directly into NDB using the NDB ...
https://dev.mysql.com/doc/refman/8.0/en/option-defaults-equals.html
Options having default values always require an equal sign when assigning a value; failing to do so causes an error. For example, the MySQL server --log-error option has the default value host_name.err, where host_name is the name of the host on ...
https://dev.mysql.com/doc/refman/8.0/en/show-replica-status.html
In MySQL 8.0, all error codes and messages displayed in the Last_SQL_Errno and Last_SQL_Error columns correspond to error values listed in Server Error Message Reference. Note When the replication SQL thread receives an error, it reports the error ... SHOW {REPLICA | SLAVE} STATUS [FOR CHANNEL channel] This statement provides status information on essential parameters of the replica ...
https://dev.mysql.com/doc/refman/8.0/en/declare-condition.html
DECLARE condition_name CONDITION FOR condition_value condition_value: { mysql_error_code | SQLSTATE [VALUE] sqlstate_value } The DECLARE ... It can take the following forms: mysql_error_code: An integer literal indicating a MySQL error code. Do not ...CONDITION statement declares a named error condition, associating a name with a condition that needs specific ...
https://dev.mysql.com/doc/refman/8.0/en/show-warnings.html
SHOW WARNINGS [LIMIT [offset,] row_count] SHOW COUNT(*) WARNINGS SHOW WARNINGS is a diagnostic statement that displays information about the conditions (errors, warnings, and notes) resulting from executing a statement in the current session. If ...
https://dev.mysql.com/doc/refman/8.0/en/json-table-functions.html
name type PATH string_path [on_empty] [on_error]: Columns of this type are used to extract values specified by string_path. Saving an object or array triggers the optional on error clause; this also occurs when an error takes place during coercion ... This section contains information about JSON functions that convert JSON data to tabular ...
https://dev.mysql.com/doc/refman/8.0/en/server-status-variables.html
For additional connection-related information, check the Connection_errors_xxx status variables and the host_cache table. All Com_stmt_xxx variables are increased even if a prepared statement argument is unknown or an error occurred during execution. Connection_errors_xxx These variables provide information about errors that occur during the client connection ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-summary-tables.html
Summary tables provide aggregated information for terminated events over time. The tables in this group summarize event data in different ways. Each summary table has grouping columns that determine how to group the data to be aggregated, and ...
https://dev.mysql.com/doc/refman/8.0/en/explain.html
You should be aware that while this makes the output easier to read, it also renders the JSON invalid, causing JSON functions to raise an error. If the value of explain_format is JSON, EXPLAIN ANALYZE returns an error unless FORMAT=TREE is specified ... {EXPLAIN | DESCRIBE | DESC} tbl_name [col_name | wild] {EXPLAIN | DESCRIBE | DESC} [explain_type] {explainable_stmt | FOR CONNECTION connection_id} {EXPLAIN | DESCRIBE | DESC} ANALYZE [explain_type] select_stmt explain_type: { FORMAT = format_name } format_name: { TRADITIONAL | JSON | TREE } explainable_stmt: { select_stmt | TABLE ...