Abstract: In one aspect, a method may include receiving a query associated with a plurality of data sources, wherein the query includes a first attribute; identifying that a query operator, which is associated with execution of the query and the first attribute, includes a first input from a first data source of the plurality of data sources and a second input from a second data source of the plurality of data sources; determining that the first attribute at the second data source corresponds to null; pruning, based on the determined null, the second input from the second data source to inhibit a select from the second data source; and in response to the pruning, performing the query operator by selecting, from the first data source, a column corresponding to the first attribute. Related systems, methods, and articles or manufacture are also disclosed.

Abstract: The present invention generally relates to authenticating online transactions, and more specifically, to method and system for determining a potentially fraudulent online transaction request based on a risk parameter associated with a user in a networking platform such as, a social networking platform. The method comprises receiving an online transaction request from a user. Thereafter, determining the risk parameter of the user based on one or more profile parameters associated with the user or one or more peer users associated with the user in the community. Based on the risk parameter of the user the online transaction request of the user is authenticated.

Abstract: The present invention generally relates to authenticating online transactions, and more specifically, to method and system for determining a potentially fraudulent online transaction request based on a risk parameter associated with a user in a networking platform such as, a social networking platform. The method comprises receiving an online transaction request from a user. Thereafter, determining the risk parameter of the user based on one or more profile parameters associated with the user or one or more peer users associated with the user in the community. Based on the risk parameter of the user the online transaction request of the user is authenticated.

Abstract: The present invention generally relates to authenticating online transactions, and more specifically, to method and system for determining a potentially fraudulent online transaction request based on a risk parameter associated with a user in a networking platform such as, a social networking platform. The method comprises receiving an online transaction request from a user. Thereafter, determining the risk parameter of the user based on one or more profile parameters associated with the user or one or more peer users associated with the user in the community. Based on the risk parameter of the user the online transaction request of the user is authenticated.

Abstract: The present invention generally relates to authenticating online transactions, and more specifically, to method and system for determining a potentially fraudulent online transaction request based on a risk parameter associated with a user in a networking platform such as, a social networking platform. The method comprises receiving an online transaction request from a user. Thereafter, determining the risk parameter of the user based on one or more profile parameters associated with the user or one or more peer users associated with the user in the community. Based on the risk parameter of the user the online transaction request of the user is authenticated.

Abstract: The present invention generally relates to authenticating online transactions, and more specifically, to method and system for determining a potentially fraudulent online transaction request based on a risk parameter associated with a user in a networking platform such as, a social networking platform. The method comprises receiving an online transaction request from a user. Thereafter, determining the risk parameter of the user based on one or more profile parameters associated with the user or one or more peer users associated with the user in the community. Based on the risk parameter of the user the online transaction request of the user is authenticated.

Abstract: The present invention generally relates to authenticating online transactions, and more specifically, to method and system for determining a potentially fraudulent online transaction request based on a risk parameter associated with a user in a networking platform such as, a social networking platform. The method comprises receiving an online transaction request from a user. Thereafter, determining the risk parameter of the user based on one or more profile parameters associated with the user or one or more peer users associated with the user in the community. Based on the risk parameter of the user the online transaction request of the user is authenticated.