Where Clause (TCQL)

The where-clause can be used to add conditions that the data from the source has to fulfill in order to be included in the query's result. It has the following syntax:

<whereClause> ::=
  Where <searchCondition>

Name	Description
searchCondition	Expression that defines the condition. See TCQL Expression Language for details.

Note

Keywords in TCQL are case sensitive. Therefore you have to write From, you cannot write from. Additionally identifiers have to start with a capital letter. Therefore you cannot write From p In Project.... Instead you have to write From P In Project... . This behavior may change in future versions of time cockpit so that TCQL may be case insensitive in the future.

Examples

The following example shows a simple where-clause:

// Return all billable timesheets
From T In Timesheet Where T.Billable=True Select T

The following example shows a where-clause using a TCQL function:

// Return all timesheets of projects whose name starts with "Software"
From P In Project Where :Substring(P.ProjectName, 1, 8) = "Software" Select P

The following example shows a where-clause using a more complex condition with inline Iif.

// Filter using Iif-function
From P In Project Where :Iif(P.ProjectName="Software Architects' TimeCockpit", "Hello World", "Nevermind") = "Hello World" Select P

The following example shows a where-clause that references a relation.

Note

If the where-clause contains references to relations TCQL includes the referenced entities automatically. Therefore you need not explicitly add an Include element in the from-clause (see TCQL From Clause for details).

// Return all projects that have a relation to customer "software architects"
From P In Project Where P.CustomerRelation.CustomerCode = "software architects" Select P