 15 | Using version 2.7.4_01, we did a repair. After repair a former link to a missing reference was converted to null. This cannot be deleted using explorer Thank you for this report. Build 2.7.4_02 fixes the issue. hgzwicker |
15 | > Set Reference > Set to Null command is used to set a reference to null. The Edit > Set Reference ... command depends on the context. Deleting a reference field sets the value to null without deleting any ... to Collection > Add Null command is used to add a null value. The Edit > Add to Collection > Add Existing Entity |
14 | Objectdb ignores not null annotations |
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13 | have any matching inner value it gets at least a NULL value as a matching value in the FROM iteration. Therefore, a Country c with no Capital city has a minimum representation of (c, NULL) in the FROM ... JOIN variant returns Nauru with a NULL value as its capital. [LEFT [OUTER] | INNER] JOIN FETCH JPA |
13 | . When an entity object is stored in the database every persistent field must contain either null or a value ... is persistable (or null). Every persistent field can be marked with one of the following annotations ... the default behavior. null values are allowed by default. Specifying optional=false (as demonstrated |
11 | with default values (0, false or null). Fields in the old schema that do not have matching fields in the new ... with a default value (0, false or null). The following type conversions are supported: From any numeric type ... that are stored as numeric ordinal values (the default). From any type to Boolean or boolean (0, null |
