String Length Limitations

Maximum command string length =  255 bytes (up to V7.3-1) 4095 bytes (V7.3-2 +)

Maximum string length for SHOW SYMBOL =  500 bytes (up to V7.3-1) 4087 bytes (V7.3-2 +)

Maximum string length that DCL can manipulate = 510 bytes (up to V7.3-1) 8173 bytes (V7.3-2 +)

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The longest command string that you can pass to DCL before symbol substitution is 255 bytes for V7.3-1 and earlier, 4095 bytes for V7.3-2 and later.

The longest string that SHOW SYMBOL can display without an informational message (%DCL-I-SYMTRUNC, preceding symbol value has been truncated) is 500 bytes for V7.3-1 and earlier, 4087 bytes for V7.3-2 and later. This appears to be an output buffer size limitation.

The longest string that can be manipulated using lexical functions, concatenation or reduction is 510 bytes for V7.3-1 and earlier, 8173 bytes for V7.3-2 and later.