![]() ![]() ![]() Specified using identifier or string quoting characters:Įlsewhere in the statement, quoted references to the alias must In the select list of a query, a quoted column alias can be Theįollowing statement creates a table named a`b Identifier itself, then you need to double the character. Within the identifier is the same as that used to quote the Identifier quote characters can be included within an identifier The server SQL mode is controlledĪs described in Section 5.1.11, “Server SQL Modes”. Server to interpret double-quoted strings as identifiers.Ĭonsequently, when this mode is enabled, string literals must beĮnclosed within single quotation marks. Mysql> SELECT * FROM `select` WHERE `select`.id > 100 Įnabled, it is also permissible to quote identifiers within doubleĮRROR 1064: You have an error in your SQL syntax. The identifier quote character is the backtick Theĭollar sign can still be used as the leading character of suchĪn identifier when it is quoted according to the rules given Qualifiers (see Section 9.2.2, “Identifier Qualifiers”). View, column, stored program, or alias is deprecated and Identifiers may begin with a digit but unless quoted may notĭatabase, table, and column names cannot end with spaceīeginning with MySQL 8.0.32, use of the dollar sign as theįirst character in the unquoted name of a database, table, Higher) are not permitted in quoted or unquoted identifiers. Identifiers thus may contain theseĪSCII NUL (U+0000) and supplementary characters (U+10000 and SupplementaryĬharacters are not permitted. Those in the Basic Multilingual Plane (BMP). The permissible Unicode characters in identifiers are Internally, identifiers are converted to and are stored as Unicode Words are listed at Section 9.3, “Keywords and Reserved Words”. Name must be an identifier, so it need not be quoted.) Reserved (Exception: A reserved word that follows a period in a qualified Special characters or is a reserved word, you Types of identifiers are case-sensitive and under what conditions.Īn identifier may be quoted or unquoted. Section 9.2.3, “Identifier Case Sensitivity”, describes which Section 9.2.1, “Identifier Length Limits”, indicates the maximum This section describes the permissible syntax for identifiers in Resource group and other object names are known as identifiers. ![]() 9.2.1 Identifier Length Limits 9.2.2 Identifier Qualifiers 9.2.3 Identifier Case Sensitivity 9.2.4 Mapping of Identifiers to File Names 9.2.5 Function Name Parsing and ResolutionĬertain objects within MySQL, including database, table, index,Ĭolumn, alias, view, stored procedure, partition, tablespace, ![]()
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