Length - Precision and scale for number type length for string type You can review the type conversion from Java to SQL type from this document: Java Types vs SQL Data Types. Hidden - You can also choose to hide the column using Hidden option. You can set the values of these hidden columns during insert/update operations: These columns will not be available for user manipulation. by setting the Value from the Data Value tab, or.by passing the value during the insert operation from a widget.Value Type - From the Data tab, set the Value Type as ( click here for more): User Defined which can take a Default Value.
Dbschema set primary key update#
Dbschema set primary key generator#
Sequence will assign the values based on the generator name given.Auto-generated will assign the primary key values or.Assigned lets user enter the primary key values.Primary Key - In case of primary key column, the value can be set to ( see here for more) Database Defined which uses database trigger or the default values. WaveMaker supports Composite Keys that is multiple columns can be specified as Primary Keys. Relations are a way to establish a connection between tables within a given database. Select and hover over the column to build a relationship on.In WaveMaker, there are two ways of creating relationships: It takes care of the consistency while linking two tables. It is possible to add Virtual Relations.Many-to-One Composite relation is possible when Table 1 has at least one non-Composite key column selected and Table 2 has the composite keys.One-to-Many Composite relation is possible when Table 1 has the composite keys and Table 2 has at least one non-Composite key column selected.One-to-One Composite relation is possible between the tables which have the same number of composite keys.Select the cardinality of the relation.In the dialog the source table and column are already selected and not editable.For each column, on select and hover, a Create Relation icon displays.Click the second column of the relationship. This feature can be used to establish relations without changing the DB Schema. This will enable one to enforce DB level constraints without having to write any scripts or queries. Clicking on CREATE will create the virtual relation. It is possible to add Relations involving Composite Keys.This will be indicated by a dotted line and the virtual flag is set in the relationship property.
You can add columns to the relation by using the Add Relationship button. Clicking on CREATE will create the composite relation.
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