Magic unipaas jobs
This allows you to set up the default value inside the DBMS. But if you have some specific value you want to use as an initialization value, you can enter it here.ĭatabase default : Magic xpa passes this string to the DBMS in the CREATE TABLE statement. Most fields default to zero or blank, as you would expect. Otherwise, the default value is whatever is entered in the Default value property.ĭefault value : Magic xpa will automatically initialize fields when they are first created you don’t have to do it manually. Null default : If this is Yes, then the default value for the field is NULL. For instance, the Null value might be some odd date such as, but the user could see “Please enter your birthday”. Null display : What the user sees when the value is NULL. However, in your programming you don’t have to remember the actual value because you can use the NULL() and ISNULL() functions. NULL values are often some strange value that would never normally be entered. If this is not specified, then the actual value of NULL is fetched from the DBMS section of the Magic.Ini file. Null value : The value that the field is considered to contain when it is NULL. If Yes, then you can set the values for Null value, Null display, and Null default. Null allowed : If this is set to No, then the next three fields are greyed out and don’t apply to this field nulls will not be used at all. These are summarized below, but you can get more information about any one option in Magic xpa by positioning the cursor on it and pressing F1. The Def/Null and SQL sections give further information about the details of the field implementation. In the Storage section, we see exactly how this field is actually implemented. Here we see this is a large numeric field with 10 digits, which can hold any value from -2,147,483,648 to -2,147,483,648. The details about the data attributes of the field in Magic xpa are contained in the Details section. These details are handled in the Properties ( Alt+Enter ) for each column in the database table. However, you do have control over the actual database storage. When you are working in Magic xpa, you only have to deal with a handful of different types - alpha, numeric, date, time, boolean - and you don’t have to worry about how those variables are actually stored in memory or in a database. Magic xpa does a good job of making it easy to handle the huge variety of data types, by insulating you from the details of the implementation. How Do I Define the Mapping Between a Magic xpa Field and a Database Column? (Magic xpa 3.x)