CN109992695B - Video information query method and device - Google Patents
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Abstract
The embodiment of the invention provides a video information query method and a video information query device, wherein the video information query method comprises the following steps: when video information needs to be inquired from a main database or a standby database, determining an index pointed by an index alias, wherein the index pointed by the index alias is an index of the database which is not updated at present, and when the index pointed by the index alias is an index of the main database, inquiring the video information from the main database; and when the index pointed by the index alias is the index of the standby database, inquiring the video information from the standby database. By applying the embodiment of the invention, only one of the main database and the standby database is required to be inquired, and the main database and the standby database do not need to be inquired at the same time, so that the efficiency of inquiring the video information is improved.
Description
Technical Field
The invention relates to the technical field of databases, in particular to a video information query method and a video information query device.
Background
With the rapid development of internet technology in recent years, network video is gradually developed to become an important medium for people to communicate information. It has been enjoyed by more and more people as a new way of information transfer. Especially, in competition among some internet video playing enterprises, video playing is not limited to search and watch, and users also pay more and more attention to a series of data information such as playing amount, set praise number, comment amount and the like of watching videos. The updating of these data is therefore one of the important tasks for video playback.
In the related art, at the server, the main database and the standby database may be used to store video information at the same time, and the video information stored in the two databases is the same. When the stored video information needs to be updated, the main database and the standby database can be updated in sequence.
The method comprises the steps of storing video information in a database, searching the current data volume of a main database and the current data volume of a standby database, comparing the current data volumes, selecting a database with larger current data volume from the main database and the standby database as a database to be used for searching the video information at this time, and searching the video information from the database.
The inventor finds that the prior art at least has the following problems in the process of implementing the invention:
before inquiring video information, the data volumes of the main database and the standby database need to be inquired out, and the used database is determined through a comparison result, so that the inquiring efficiency of the video information is low.
Disclosure of Invention
An object of the embodiments of the present invention is to provide a video information query method, so as to solve the technical problem of low query efficiency of video information in the related art. The specific technical scheme is as follows:
the embodiment of the invention provides a video information query method, which comprises the following steps:
when video information needs to be inquired from a main database or a standby database, determining an index pointed by an index alias, wherein the index pointed by the index alias is an index of the database which is not updated at present;
when the index pointed by the index alias is the index of the main database, inquiring video information from the main database;
and when the index pointed by the index alias is the index of the standby database, inquiring video information from the standby database.
Further, the main database and the standby database are updated by the following steps:
when data updating needs to be carried out on the main database and the standby database, video information data needed by updating are obtained;
setting an index pointed by an index alias as an index of the standby database;
updating data of the main database by using the video information data required by updating;
after the data updating of the main database is completed, setting the index pointed by the alias of the index as the index of the main database;
and updating the data of the standby database by using the video information data required by updating.
Further, when data update needs to be performed on the primary database and the standby database, acquiring video information data required for update includes:
when data updating needs to be performed on the main database and the standby database, video information data needed for updating are obtained from a data warehouse, wherein the video information data are counted in advance according to preset data dimensionality and stored in the data warehouse.
Further, the updating the data of the active database by using the video information data required for updating includes:
clearing all data from the main database;
and writing the video information data required for updating into the main database in a full amount.
Further, the data updating the standby database by using the video information data required by the updating includes:
clearing all data from the standby database;
and writing the video information data required by updating into the standby database in full.
Correspondingly, the embodiment of the invention also provides a video information inquiry device, which comprises:
the index determining module is used for determining an index pointed by an index alias when video information needs to be inquired from a main database or a standby database, wherein the index pointed by the index alias is an index of a database which is not updated at present;
the information query module is used for querying video information from the main database when the index pointed by the index alias is the index of the main database;
the information query module is further configured to query video information from the standby database when the index pointed by the index alias is the index of the standby database.
Further, the apparatus further comprises:
the data acquisition module is used for acquiring video information data required by updating when the data of the main database and the standby database are required to be updated;
the index setting module is used for setting the index pointed by the index alias as the index of the standby database;
the data updating module is used for updating the data of the main database by using the video information data required by updating;
the index setting module is further configured to set the index pointed by the index alias as the index of the main database after the data update of the main database is completed;
the data updating module is further configured to update the data of the standby database by using the video information data required for updating.
Further, the data obtaining module is specifically configured to, when data update needs to be performed on the primary database and the standby database, obtain video information data required for update from a data warehouse, where the video information data is pre-counted according to a preset data dimension and stored in the data warehouse.
Further, the data update module is specifically configured to:
clearing all data from the main database;
and writing the video information data required for updating into the main database in a full amount.
Further, the data update module is specifically configured to:
clearing all data from the standby database;
and writing the video information data required by updating into the standby database in full.
The embodiment of the invention also provides electronic equipment which comprises a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory complete mutual communication through the communication bus;
a memory for storing a computer program;
and the processor is used for realizing the steps of any video information inquiry method when executing the program stored in the memory.
The embodiment of the invention also provides a computer readable storage medium, wherein a computer program is stored in the computer readable storage medium, and when being executed by a processor, the computer program realizes the steps of any video information query method.
Embodiments of the present invention further provide a computer program product containing instructions, which when run on a computer, cause the computer to perform any of the steps of the video information query method described above.
The embodiment of the invention has the following beneficial effects:
the embodiment of the invention provides a video information query method, in the query method, when video information needs to be queried from a main database or a standby database, an index pointed by an index alias is determined, the video information is queried from the database to which the pointed index belongs, when the index pointed by the index alias is the index of the main database, the video information is queried from the main database, and when the index pointed by the index alias is the index of the standby database, the video information is queried from the standby database, namely only one of the main database and the standby database is queried, and the main database and the standby database do not need to be queried simultaneously, so that the efficiency of querying the video information is improved.
Of course, not all of the advantages described above need to be achieved at the same time in the practice of any one product or method of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is a flowchart of a video information query method according to an embodiment of the present invention;
fig. 2 is a detailed flowchart of an embodiment of a video information query method according to the present invention;
fig. 3 is a schematic structural diagram of a video information query apparatus according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a database updating apparatus according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
An embodiment of the present invention provides a video information query method, as shown in fig. 1, which specifically includes the following steps:
The index pointed by the index alias is the index of the database which is not updated at present.
In this step, when the primary database is updated, the index pointed by the index alias is the index of the backup database, when the backup database is updated, the index pointed by the index alias is the index of the primary database, and when the database is not updated, the index pointed by the index alias is the primary database.
And 102, when the index pointed by the index alias is the index of the main database, inquiring the video information from the main database.
And 103, when the index pointed by the index alias is the index of the standby database, inquiring the video information from the standby database.
By adopting the video information query method of the embodiment of the invention, when the video information needs to be queried from the main database or the standby database, the index pointed by the index alias is determined, the video information is queried from the database to which the pointed index belongs, when the index pointed by the index alias is the index of the main database, the video information is queried from the main database, and when the index pointed by the index alias is the index of the standby database, the video information is queried from the standby database, namely only one of the main database and the standby database is queried, and the main database and the standby database do not need to be queried simultaneously, so that the efficiency of querying the video information is improved.
For the database update in the video information query method, an embodiment of the present invention provides a database update method, and as shown in fig. 2, the method specifically includes the following steps:
The main database and the standby database are used for storing video information, the main database and the standby database can be alternately used in database application, and if one database fails, the other database can be used.
In this step, the video information data required for updating may be counted in advance according to preset data dimensions, and may be counted for a certain time period, for example, one day, one week, one month, and the like. The video information data obtained by statistics can be stored in a data warehouse, and when data updating needs to be carried out on the main database and the standby database, the video information data needed by updating is obtained from the data warehouse.
Further, the data warehouse type may be a hive database.
Assuming that video information data are updated at a fixed point of nine am, twelve am and six evening points every day, the video information data to be updated are counted in advance according to preset data dimensions before the nine am, twelve am and six evening points, the video information data to be updated are summarized, and the data are imported into the hive database. The video information data may include: the amount of play, number of praise, amount of commentary, etc. of the video.
The index pointed by the index alias is an index of a database used when video information needs to be queried.
In this step, the index name of the index of the standby database may be modified into a pre-created index alias, that is, the index alias is pointed to the standby database. That is, when the primary database is updating data, the user can query the video information in the standby database.
And 203, updating the data of the main database by using the video information data required by updating.
In the embodiment of the present invention, when updating the data in the primary database, a full-volume updating manner may be adopted, and specifically, all data may be removed from the primary database first, and then the video information data required for updating may be written into the primary database in full volume.
For example, the video information data is updated at a fixed point three times a day, and before a certain video information update is performed, the video information data updated last time is stored in the primary database.
And step 204, after the data updating of the main database is completed, setting the index pointed by the index alias as the index of the main database.
In this step, the index name of the index of the primary database may be modified into a pre-created index alias, that is, the index alias is pointed to the primary database. That is, after the data update of the primary database is finished, the user can query the video information in the primary database.
And step 205, updating the data of the standby database by using the video information data required by updating.
In the embodiment of the present invention, when updating the data in the backup database, a full-volume updating manner may be adopted, and specifically, all data may be cleared from the backup database first, and then the video information data required for updating is written into the backup database in full volume.
By adopting the database updating step in the video information query method provided by the embodiment of the invention, when the data of the main database and the standby database needs to be updated, the index pointed by the index alias is set as the index of the standby database, then the video information of the main database is updated in a full amount, and then the index pointed by the index alias is set as the index of the main database, and the video information of the standby database is updated in a full amount. The method can be used for inquiring the video information while updating the data of the main database or the standby database, and the efficiency of inquiring the video information is improved.
Correspondingly, according to the video information query method provided by the above embodiment of the present invention, an embodiment of the present invention provides a video information query apparatus, as shown in fig. 3, the apparatus includes:
an index determining module 301, configured to determine, when video information needs to be queried from a primary database or a standby database, an index pointed by an index alias, where the index pointed by the index alias is an index of a database that is not updated currently;
an information query module 302, configured to query video information from the primary database when the index pointed by the index alias is an index of the primary database;
the information query module 302 is further configured to query the video information from the backup database when the index pointed by the index alias is an index of the backup database.
For the database updating method shown in fig. 2, correspondingly, an embodiment of the present invention provides a database updating apparatus, which is applied to update a primary database and a standby database, and as shown in fig. 4, the apparatus further includes:
a data obtaining module 401, configured to obtain video information data required for updating when data needs to be updated in the primary database and the standby database;
an index setting module 402, which sets the index pointed by the index alias as the index of the standby database;
the data updating module 403 is further configured to update data of the primary database by using the video information data required for updating;
the index setting module 402 is further configured to set the index pointed by the alias of the index as the index of the primary database after the data update of the primary database is completed;
the data updating module 403 is further configured to update the data of the standby database by using the video information data required for updating.
Further, the data obtaining module 401 is specifically configured to, when data update needs to be performed on the primary database and the standby database, obtain video information data required for update from the data warehouse, where the video information data is pre-counted according to a preset data dimension and stored in the data warehouse.
Further, the data updating module 403 is specifically configured to:
clearing all data from the main database;
and writing the video information data required by updating into the main database in full.
Further, the data updating module 403 is specifically configured to:
clearing all data from the standby database;
and writing the video information data required by updating into the standby database in full.
An embodiment of the present invention further provides an electronic device, as shown in fig. 5, which includes a processor 501, a communication interface 502, a storage 503, and a communication bus 504, where the processor 501, the communication interface 502, and the storage 503 complete mutual communication through the communication bus 504,
a memory 503 for storing a computer program;
the processor 501 is configured to implement the steps of any of the video information query methods described above when executing the program stored in the memory 503.
The communication bus mentioned in the electronic device may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The communication bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown, but this does not mean that there is only one bus or one type of bus.
The communication interface is used for communication between the electronic equipment and other equipment.
The Memory may include a Random Access Memory (RAM) or a Non-Volatile Memory (NVM), such as at least one disk Memory. Optionally, the memory may also be at least one memory device located remotely from the processor.
The Processor may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but also Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components.
In another embodiment of the present invention, a computer-readable storage medium is further provided, in which a computer program is stored, and the computer program, when executed by a processor, implements the steps of any of the above video information query methods.
In another embodiment, the present invention further provides a computer program product containing instructions, which when run on a computer, causes the computer to execute any one of the video information query methods in the above embodiments.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the apparatus, the computer medium, the electronic device, and the computer program product embodiment, since they are substantially similar to the method embodiment, the description is relatively simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (9)
1. A video information query method, the method comprising:
when video information needs to be inquired from a main database or a standby database, determining an index pointed by an index alias, wherein the index pointed by the index alias is an index of the database which is not updated at present;
when the index pointed by the index alias is the index of the main database, inquiring video information from the main database;
when the index pointed by the index alias is the index of the standby database, inquiring video information from the standby database;
updating the main database and the standby database by adopting the following steps:
when data updating needs to be carried out on the main database and the standby database, video information data needed by updating are obtained;
setting an index pointed by an index alias as an index of the standby database;
updating data of the main database by using the video information data required by updating;
after the data updating of the main database is completed, setting the index pointed by the alias of the index as the index of the main database;
and updating the data of the standby database by using the video information data required by updating.
2. The method according to claim 1, wherein when data update needs to be performed on the active database and the standby database, acquiring video information data needed for update comprises:
when data updating needs to be performed on the main database and the standby database, video information data needed for updating are obtained from a data warehouse, wherein the video information data are counted in advance according to preset data dimensionality and stored in the data warehouse.
3. The method according to claim 1, wherein said updating the data of the primary database using the video information data required for updating comprises:
clearing all data from the main database;
and writing the video information data required for updating into the main database in a full amount.
4. The method of claim 1, wherein the data updating the backup database using the video information data required for updating comprises:
clearing all data from the standby database;
and writing the video information data required by updating into the standby database in full.
5. A video information query apparatus, comprising:
the index determining module is used for determining an index pointed by an index alias when video information needs to be inquired from a main database or a standby database, wherein the index pointed by the index alias is an index of a database which is not updated at present;
the information query module is used for querying video information from the main database when the index pointed by the index alias is the index of the main database;
the information query module is further configured to query video information from the standby database when the index pointed by the index alias is the index of the standby database;
the device further comprises:
the data acquisition module is used for acquiring video information data required by updating when the data of the main database and the standby database are required to be updated;
the index setting module is used for setting the index pointed by the index alias as the index of the standby database;
the data updating module is used for updating the data of the main database by using the video information data required by updating;
the index setting module is further configured to set the index pointed by the index alias as the index of the main database after the data update of the main database is completed;
the data updating module is further configured to update the data of the standby database by using the video information data required for updating.
6. The apparatus according to claim 5, wherein the data obtaining module is specifically configured to, when data update needs to be performed on the primary database and the standby database, obtain video information data required for update from a data warehouse, where the video information data is pre-counted according to a preset data dimension and stored in the data warehouse.
7. The apparatus of claim 5, wherein the data update module is specifically configured to:
clearing all data from the main database;
and writing the video information data required for updating into the main database in a full amount.
8. The apparatus of claim 5, wherein the data update module is specifically configured to:
clearing all data from the standby database;
and writing the video information data required by updating into the standby database in full.
9. An electronic device is characterized by comprising a processor, a communication interface, a memory and a communication bus, wherein the processor and the communication interface are used for realizing mutual communication by the memory through the communication bus;
a memory for storing a computer program;
a processor for implementing the method steps of any of claims 1 to 4 when executing a program stored in the memory.
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