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Query Properties

This topic describes the properties of a Query object in a catalog.

Property Name Description
Data Source Filter Specifies whether to allow using the query to filter multiple queries. For more information, see Using a Query to Filter Multiple Queries.

Data type: Boolean
Description Specifies the description of the query.

Data type: String
Enable SQL Statement Creator Specifies whether the query uses the dynamic query interface to get the result set. If you set the property to "true", Logi Report Engine can regenerate the query at runtime using the dynamic query interface. For more information, see Dynamic Queries.

Data type: Boolean
Maximum Duration Specifies the maximum elapsed time allowed to fetch data from the data source when the query runs, measured in seconds. By default, the property value is blank, meaning the time is unlimited. For more information, see Limiting the Query Run Time and Number of Records.

Data type: Integer
Maximum Rows Specifies the maximum number of rows to be fetched from the data source when the query runs. By default, the property value is blank, meaning the number is unlimited. For more information, see Limiting the Query Run Time and Number of Records.

Data type: Integer
Name Specifies the mapped name of the query in the catalog.

Data type: String
Path Name Specifies the pre-join path the query applies. For more information, see Creating Queries Using Pre-join.

Data type: String
Push Down Group Query Specifies whether to push down group level summary computations in the reports that use the query to the DBMS at runtime. Choose an option from the drop-down list.
  • default - Select to apply the setting of the same property for the JDBC connection based on which you create the query.
  • true - Select to push down the group level summary computations to the DBMS if the DBMS can perform the computations; otherwise, Logi Report Engine do the computations itself.
  • false - Select to have Logi Report Engine perform the group level summary computations itself.

Data type: Boolean
Read Only Specifies whether the query is read only. Choose an option from the drop-down list.
  • default - Select to apply the setting from the database.
  • read & write - Select to allow users to access the database in read-write mode.
  • read only - Select to allow users to access the database in read-only mode. This option can speed up the transaction of the catalog.

Data type: Enumeration
Share Specifies whether to share the query. For more information, see Locking Queries.

Data type: Boolean

Transaction Mode Specifies the transaction mode for the query. Choose an option from the drop-down list.
  • default
    Select to apply the setting from the database.
  • none
    Select to not use transactions for the query.
  • read uncommitted
    Select to allow dirty reads, non-repeatable reads, and phantom reads to occur for the query. This mode can speed up the transaction of the catalog.
  • read committed
    Select to prevent dirty reads, and allow non-repeatable reads and phantom reads to occur for the query.
  • repeatable read
    Select to prevent dirty reads and non-repeatable reads, and allow phantom reads to occur for the query.
  • serializable
    Select to prevent dirty reads, non-repeatable reads, and phantom reads for the query.

Data type: Enumeration

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