![]() ![]() It is also possible to precise a specific ordering for NULL values. Specified, then the sorting is ascendant ( ASC). Order: variable or column number followed by sorting method ( ASC,ĭESC), ASC being the default. The ORDERBY keyword if followed by the definition of the selection usedīy an aggregate function) or grouped (i.e. They are usually used with aggregate functions, responsible toĪggregate values for each group (see Aggregate functions).įor grouped queries, all selected variables must be either aggregated (i.e. The GROUPBY keyword is followed by a list of terms on which results Logical operators #Īny UPPER ( N ) WHERE P firstname N 2.2.7.2. You may also use the NULL keyword, meaning ‘unspecified’. Quote, it should be preceded by a backslash ‘\’īoolean values are TRUE and FALSE keywordsĭate and time should be expressed as a string with ISO notation : YYYY/MM/DD String should be between double or single quotes. Variables should not identify the same entityīases types supported by RQL are those supported by yams schema. Opposite it’s also useful together with the NOT operator to tell that two When you’ve to use two different variables for querying purpose. Identity: relation to use to tell that a RQL variable is the same as another ![]() Has_text: relation to use to query the full text index (only for entities Those relations may only be used in RQL query but are not actual attributes of We can restrict the possible types for a variable using the special relation The constraints expressed above and thanks to the relations between each The possible type(s) for each variable is derived from the schema according to One (real) entity by a relation called the name of the attribute, where theĮntity is the subject and the attribute the object. The value of anĪttribute is considered as an entity of a particular type (see below), linked to ![]() With RQL, we do not distinguish between entities and attributes. Variables that must be written in capital letters. Relation should be all lower-cased and match exactly names of relations definedĮntity types should start with an upper cased letter and be followed by at leastĮntities and values to browse and/or select are represented in the query by You should not use them when defining your How to use entities objects and adaptersĪND, ASC, BEING, DELETE, DESC, DISTINCT, EXISTS, FALSE, GROUPBY, HAVING, ILIKE, INSERT, LIKE, LIMIT, NOT, NOW, NULL, NULLSFIRST, NULLSLAST, OFFSET, OR, ORDERBY, SET, TODAY, TRUE, UNION, WHERE, WITH Loaded attributes and default sorting managementĤ.7. The Registry, selectors and application objectsĤ.5. User interface for web site configurationĢ. Importing relational data into a CubicWeb instanceĬreate a Website from scratch with CubicWebħ. Writing text reports with RestructuredText Part V: let’s make it even more user friendly ![]()
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