12/10/2023 0 Comments Pgmodeler difference name text![]() Currently, the tool does not offer an interface to handle schema micro language easily. Thus the whole resulting code is:Äespite the excessive usage of schema code to generate so few SQL lines the main advantage of this approach is to facilitate the code maintenance and give users the freedom to change the default formatting or even add additional instructions to the resulting code. The lines 10 to 12 are ignored because they are the else part of the if and the parser already evaluated it.įinally, the parser reaches the last line 13 and finds another plain text statement and a metacharacter $br and translates them. The metacharacter in them are translated and the plain text statement is processed as well. Since the evaluated logical expression is true then the lines 8 and 9 are processed as well. One sample usage for a comparison expression can be: %if ( has the value tableA as the declaration defined in the lines 3 and 4. This is a comparison expression and it can be used when we need to compare the current value of an attribute against a constant instead of only checking if an attribute has a value or not. If the value conversion is not used in the previous example the result would be false because the string 9.0 is greater than 10.0, now, if the floating-point conversion is used then the result of the expression would be true. This is useful when you need to compare two numbers wrapped in a sting like this %if "9.0" ![]() There are only basic comparison operations and they involve only string values being them = (equals to), != (different from), > (greater than), = (greater or equal to),, =, ), less than ( =) and less or equals to ( =f B to convert the values to floating-point prior to the comparison.Only the logical operations and, or and 'not` are supported. ![]()
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