SAP ABAP: Convert Integer to String Efficiently

In SAP ABAP, converting an integer to a string (or character) can be done in multiple ways. Here are the best methods:

🔹 1. Implicit Conversion (Direct Assignment)

ABAP allows automatic conversion from I (integer) to STRING or C (character).

Example

DATA: lv_int TYPE I VALUE 123,
      lv_str TYPE STRING.  " Dynamic-length string

lv_str = lv_int.  " Implicit conversion

WRITE: lv_str.  " Output: 123

📌 Works well for most cases and keeps the code clean.

🔹 2. Using CONV (Explicit Conversion)

The CONV function explicitly converts an integer to a string.

Example

DATA: lv_int TYPE I VALUE 456,
      lv_str TYPE STRING.

lv_str = CONV string( lv_int ).

WRITE: lv_str.  " Output: 456

📌 Recommended for clarity in modern ABAP.

🔹 3. Using WRITE TO Statement

The WRITE TO statement formats the integer into a character variable.

Example

DATA: lv_int TYPE I VALUE 789,
      lv_char TYPE C LENGTH 10.  " Fixed-length character

WRITE lv_int TO lv_char.

WRITE: lv_char.  " Output: '789      ' (right-padded)

📌 Good for formatted output, but be careful with fixed-length padding.

🔹 4. Using && Concatenation (Quick Inline Conversion)

Concatenating an integer with an empty string converts it to a string.

Example

DATA: lv_int TYPE I VALUE 1000,
      lv_str TYPE STRING.

lv_str = lv_int && ''.  " Concatenation forces conversion

WRITE: lv_str.  " Output: 1000

📌 Simple and effective for quick conversions.

📝 Summary: Best Methods for Integer to String Conversion

Would you like an example using internal tables or formatted output? 🚀