Question

how to check if all parameters in procedure begins with “p_” using a regex?

Procedure sample:

DELIMITER $$

DROP PROCEDURE IF EXISTS `sp_in_sys_blablabla`$$

CREATE  PROCEDURE `sp_in_sys_blablabla`(
    p_cod_componente INT(11),
    cod_tipo_ocorrencia SMALLINT(4), 
    p_dat_inicio CHAR(30), 
    dat_fim CHAR(30), 
    p_cod_usu_inc CHAR(10), 
    p_datInc CHAR(40)
)
BEGIN
    DECLARE v_excecao SMALLINT DEFAULT 0; 
    DECLARE CONTINUE HANDLER FOR SQLEXCEPTION SET v_excecao = 1;
    START TRANSACTION;
......
END$$

C# code:

string content = "proceddure code"; 
Regex regex = new Regex(regras[i].Regex, RegexOptions.Multiline | RegexOptions.CultureInvariant | RegexOptions.IgnoreCase);

if (regex.IsMatch(content)) Console.WriteLine(ERROR_MESSAGE);

Answer 1

From my point of view you have two options:

1. You can use regular expressions. Read your sql statement line by line. Be sure, that you’re inside the declaration of a procedure! I think that is very error-prone due to the fact, that it is not necessary by syntax. The actual regular expression seems very easy p_[a-z]+.

2. Use a parser (i.e., Gold parser). Possibly you’ll find a grammar for SQL syntax. You can then grab any parameter within a procedure declaration and check whether it StartsWith("p_").