The following functions return a string.
| Function | Result |
|---|---|
| FormatDate | Formats date strings. |
| Concat | Concatenates input strings. |
| Left | Returns a specified number of characters from the left side of the string. |
| Right | Returns a specified number of characters from the right side of the string. |
| LTrim | Trims whitespace on the left of the string. |
| RTrim | Trims whitespace on the right of the string. |
| Lower | Converts upper-case string to lower case. |
| Upper | Converts lower-case string to upper case. |
| Substring | Returns the substring between a starting and ending position. |
| NumToStr | Converts a double-precision floating-point value into a decimal string. |