In cases like that I use square bracets as string delimiters. It makes code eithier to read.

lcCommand=[SHAPE {SELECT * FROM "dbo"."Clientes" WHERE C_CODIGO = ]"+tcChv+"[}  AS Clientes APPEND]
* fixed
lcCommand = [SHAPE {SELECT * FROM "dbo"."Clientes" WHERE C_CODIGO = '] ;
		+ tcChv + ['}  AS Clientes APPEND]

>Hi all,
>
>Why this give me a syntax error,
>

>lcCommand='SHAPE {SELECT * FROM "dbo"."Clientes" WHERE C_CODIGO = '"+tcChv+"'}  AS Clientes APPEND'
>...
>

>
>Thank's
>
>João Batista