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How to use string functions, logical functions and mathematical functions.
| Concatenate strings. | | SQLite | DB2 | Access | Postgres | Oracle | SQL Server | MySQL | Mimer | Sybase | |
| Substring: Extracting part of a string. | | SQLite | DB2 | Access | Postgres | Oracle | SQL Server | MySQL | Mimer | Sybase | |
| lower case | | SQLite | DB2 | Access | Postgres | Oracle | SQL Server | MySQL | Mimer | Sybase | |
| Finding a substring in a string | | SQLite | DB2 | Access | Postgres | Oracle | SQL Server | MySQL | Mimer | Sybase | |
| Formatting numbers to two decimal places. | | SQLite | DB2 | Access | Postgres | Oracle | SQL Server | MySQL | Mimer | Sybase | |
| Replace a NULL with a specific value | | SQLite | DB2 | Access | Postgres | Oracle | SQL Server | MySQL | Mimer | Sybase | |
| Conditional values | | SQLite | DB2 | Access | Postgres | Oracle | SQL Server | MySQL | Mimer | Sybase | |
| Get the date and time right now. | | SQLite | DB2 | Access | Postgres | Oracle | SQL Server | MySQL | Mimer | Sybase | |
| Format dates. | | SQLite | DB2 | Access | Postgres | Oracle | SQL Server | MySQL | Mimer | Sybase | |