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sqlways:postgresql:identifiers [September 01, 2009, 10:52:20 AM] – leonov | sqlways:postgresql:identifiers [May 31, 2023, 05:28:10 PM] (current) – external edit 127.0.0.1 |
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====== PostgreSQL Identifiers ====== | ====== PostgreSQL Identifiers ====== |
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| **MySQL** | [[sqlways:mysql/identifiers|MySQL Identifiers ]] | Allowed: digit \\ Not allowed: _ | No differences | 64 | | | **MySQL** | [[sqlways:mysql/identifiers|MySQL Identifiers ]] | Allowed: digit \\ Not allowed: _ | No differences | 64 | |
| **Sybase ASE** | [[sqlways:sybase/identifiers|Sybase ASE Identifiers ]] | Allowed: @ and # | Allowed: @ and # | 255 | | | **Sybase ASE** | [[sqlways:sybase/identifiers|Sybase ASE Identifiers ]] | Allowed: @ and # | Allowed: @ and # | 255 | |
| | **Sybase ASA** | [[sqlways:sybase/asa-identifiers|Sybase ASA Identifiers ]] | Allowed: $, @ and # | Allowed: @ and # | 128 | |
| | **Informix** | [[sqlways:informix/identifiers|Informix Identifiers ]] | No differences | No differences | 128 | |
| | **Teradata** | [[sqlways:teradata/identifiers|Teradata Identifiers ]] | Allowed: $ and # | Allowed: # | 30 | |
| | **HP Neoview** | [[sqlways:neoview/identifiers|HP Neoview Identifiers ]] | Not allowed: _ | Not allowed: $ | 128 | |
| | **Interbase/Firebird** | [[sqlways:interbase-firebird/identifiers|Interbase/Firebird Identifiers ]] | Not allowed: _ | No differences | 67 | |
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===== Quoted or Delimited Identifiers ===== | ===== Quoted or Delimited Identifiers ===== |
| **Oracle** | [[sqlways:oracle/identifiers#quoted_or_delimited_identifiers|Oracle Quoted Identifiers ]] | "" | Any except quotes | Case sensitive | | | **Oracle** | [[sqlways:oracle/identifiers#quoted_or_delimited_identifiers|Oracle Quoted Identifiers ]] | "" | Any except quotes | Case sensitive | |
| **SQL Server** | [[sqlways:sql-server/identifiers#quoted_or_delimited_identifiers|SQL Server Quoted Identifiers ]] | [] and "" | Any except quotes | Case insensitive | | | **SQL Server** | [[sqlways:sql-server/identifiers#quoted_or_delimited_identifiers|SQL Server Quoted Identifiers ]] | [] and "" | Any except quotes | Case insensitive | |
| **IBM DB2** | [[sqlways:db2/identifiers|IBM DB2 Identifiers ]] | "" | Any including quotes | Case sensitive | | | **IBM DB2** | [[sqlways:db2/identifiers#quoted_or_delimited_identifiers|IBM DB2 Quoted Identifiers ]] | "" | Any including quotes | Case sensitive | |
| **MySQL** | [[sqlways:mysql/identifiers|MySQL Identifiers ]] | `` and "" | Any except quotes | Case sensitive | | | **MySQL** | [[sqlways:mysql/identifiers#quoted_or_delimited_identifiers|MySQL Quoted Identifiers ]] | `` and "" | Any except quotes | Case sensitive | |
| **Sybase ASE** | [[sqlways:sybase/identifiers#quoted_or_delimited_identifiers|Sybase ASE Quoted Identifiers ]] | [] and "" | Any except quotes | Case insensitive | | | **Sybase ASE** | [[sqlways:sybase/identifiers#quoted_or_delimited_identifiers|Sybase ASE Quoted Identifiers ]] | [] and "" | Any except pound sign (#) as the first character | Case insensitive | |
| | **Sybase ASA** | [[sqlways:sybase/asa-identifiers#quoted_or_delimited_identifiers|Sybase ASA Quoted Identifiers ]] | [] and "" | Any | Case insensitive | |
| | **Informix** | [[sqlways:informix/identifiers#quoted_or_delimited_identifiers|Informix Quoted Identifiers ]] | "" | Any including quotes | Case sensitive | |
| | **Teradata** | [[sqlways:teradata/identifiers#quoted_or_delimited_identifiers|Teradata Quoted Identifiers ]] | "" | Any including quotes | Case insensitive | |
| | **HP Neoview** | [[sqlways:neoview/identifiers#quoted_or_delimited_identifiers|HP Neoview Quoted Identifiers ]] | "" | Any except at sign (@), forward slash (/), \\ circumflex character (<html>^</html>) as the first character \\ and space(s) as the last character(s) | Case sensitive | |
| | **Interbase/Firebird** | [[sqlways:interbase-firebird/identifiers#quoted_or_delimited_identifiers|Interbase/Firebird Quoted Identifiers ]] | "" | Any character except space(s) as the last character(s) | Case sensitive | |
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