SQL - IF EXISTS UPDATE ELSE INSERT Syntax Error

Question

I have the following SQL query:

IF EXISTS(SELECT * FROM component_psar WHERE tbl_id = \'2\' AND row_nr = \'1\') 
   UPDATE component_psar
      SET col_1 = \         


        

Answer 1

Use the following Statement:

IF EXISTS(SELECT * FROM prueba )
then
  UPDATE prueba
  SET nombre = '1', apellido = '1' 
  WHERE cedula = 'ct'
ELSE 
  INSERT INTO prueba (cedula, nombre, apellido)
  VALUES ('ct', 'ct', 'ct');