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ABAP - Keyword Documentation → ABAP - Reference → Processing External Data → ABAP Database Accesses → Open SQL → Open SQL - Operands →Open SQL - SQL Functions
The following predefined SQL functions can either be specified as standalone functions in Open SQL or as operands of SQL expressions, in all places where SQL expressions are possible.
| Function | Meaning |
| ABS, CEIL, FLOOR, DIV, MOD, ROUND | Numeric functions |
| CONCAT, LPAD, LENGTH, LTRIM, REPLACE, RTRIM, RIGHT, SUBSTRING | String functions |
| COALESCE | Coalesce function |