如何在postgresql中的变量中分配多个变量和字符串

Question

我想将多个值或字符串或它们的组合分配给postgresql变量。我想要实现的是在DB2中完成的事情：

STRING '('              DELIMITED BY SIZE           
       variable_1       DELIMITED BY SPACE          
       ' '              DELIMITED BY SIZE           
       variable_2                        
                        DELIMITED BY SIZE           
       variable_3       DELIMITED BY SIZE           
       ' ) '            DELIMITED BY SIZE           
       X'10'            DELIMITED BY SIZE           
     INTO    var_string                            
 END-STRING

以同样的方式，我有一些变量和字符串，我想在变量“var_string”中添加。可能吗？

Answer 1

尝试CONCAT功能

 DECLARE var_string varchar;
 var_string:= concat(variable_1, variable_2,variable_3);