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https://dev.mysql.com/doc/refman/8.0/en/keywords.html
Reserved words are permitted as identifiers if you quote them as described in Section 11.2, “Schema Object Names”: mysql> CREATE TABLE interval (begin INT, end INT); ERROR 1064 (42000): You have an error in your SQL syntax ... Certain keywords, ...
https://dev.mysql.com/doc/refman/8.0/en/hexadecimal-literals.html
Legal hexadecimal literals: X'01AF' X'01af' x'01AF' x'01af' 0x01AF 0x01af Illegal hexadecimal literals: X'0G' (G is not a hexadecimal digit) 0X01AF (0X must be written as 0x) Values written using X'val' notation must contain an even number of digits ... Hexadecimal literal values are written using X'val' or 0xval notation, where val contains hexadecimal digits (0..9, ...
https://dev.mysql.com/doc/refman/8.0/en/identifiers.html
The identifier quote character is the backtick (`): mysql> SELECT * FROM `select` WHERE `select`.id > 100; If the ANSI_QUOTES SQL mode is enabled, it is also permissible to quote identifiers within double quotation marks: mysql> CREATE TABLE "test" ...Internally, identifiers are converted to and are stored as Unicode ... Certain objects within MySQL, including database, table, index, column, alias, view, stored procedure, partition, ...
https://dev.mysql.com/doc/refman/8.0/en/replication-features-reserved-words.html
Replication can fail in such cases with Error 1064 You have an error in your SQL syntax..., even if a database or table named using the reserved word or a table having a column named using the reserved word is excluded from replication. You can ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-innodb-tables-table.html
row *************************** TABLE_ID: 1064 NAME: test/t1 FLAG: 33 N_COLS: 6 SPACE: 3 ROW_FORMAT: Dynamic ZIP_PAGE_SIZE: 0 SPACE_TYPE: Single INSTANT_COLS: 0 TOTAL_ROW_VERSIONS: 3 Notes You must have the PROCESS privilege to query this table. For ...
https://dev.mysql.com/doc/refman/8.0/en/error-log-priority-based-filtering.html
The log_filter_internal log filter component implements a simple form of log filtering based on error event priority and error code. The log_error_suppression_list value may be the empty string for no suppression, or a list of one or more ...To ...
https://dev.mysql.com/doc/refman/8.0/en/error-log-rule-based-filtering.html
Error codes can be specified in numeric form or as the corresponding error symbol. For example, ER_STARTUP is the symbolic name for error 1408, so these comparisons are equivalent: IF err_code == ER_STARTUP THEN ... Error symbols are recognized only ...To enable the log_filter_dragnet filter, first load the filter component, then modify the log_error_services ...
https://dev.mysql.com/doc/refman/8.0/en/server-system-variables.html
row *************************** Level: Note Code: 4569 Message: filter configuration accepted: SET @@GLOBAL.dragnet.log_error_filter_rules= 'IF prio!=ERROR THEN unset prio.'; The value displayed by SHOW WARNINGS indicates the “decompiled” ...If ... The MySQL server maintains many system variables that affect its ...
https://dev.mysql.com/doc/refman/8.0/en/error-log-destination-configuration.html
This section describes which server options configure the default error log destination, which can be the console or a named file. This is your terminal or console window unless the standard error output has been redirected to a different ...It ...
https://dev.mysql.com/doc/refman/8.0/en/error-log-components.html
The log_filter_internal Component Purpose: Implements filtering based on log event priority and error code, in combination with the log_error_verbosity and log_error_suppression_list system variables. This section describes the characteristics of ...A log component can be a filter or a sink: A filter processes log events, to add, remove, or modify event fields, or to delete events ...