Abstract.The essay Introduces about the key technology database, OLAP and data mining technology in the framework of marketing decision support system of power supply enterprises.As for themethod for the mining spaceselection in the data mining model, an artificial neural network structure and algorithm is used, which can not only avoid complicated nonlinear modeling problemin statistical methods but also have a smaller calculation amount than general nerve networkvariable selection method. It is in accordance with the actual situationof its power marketing that this paper designs the Database, OLAP scheme and the specific selection method ofdata mining space.It is hoped that the research results of this paper would have some reference valuefor designation and implementation of the scheme of power marketing decision support system under the market environment of power.

Basic farmland is the essence of cultivated land. To completely solve China’s food security problems and achieve stable growth of agricultural production in China, it is one of the most effective ways to build high-standard basic farmland. Therefore, this paper evaluates the high standard basic farmland. This paper evaluates the natural quality of basic farmland through the construction of mathematical models. The total cultivated land area in the hilly area of Faku County is 153061.02 hm2, while the natural quality score of cultivated land in the hilly area of Faku County is between 51 and 86. Among the equal-valued intervals, the maximum cultivated land area between ≥60-70 is 129110.25 hm2, accounting for 84.35% of the total cultivated land in the hilly area of the county, followed by the area between ≥70-80, which is 9069.44 hm2. The total area of cultivated land in the hilly area of the county is 5.92%, followed by the interval of ≥ 80 points, <60 interval, the area is 8095.61 hm2, and the ratio of 6787.72 hm2 accounts for 5.29% and 4.43% of the total cultivated land in the hilly area of the county. In general, the natural quality of cultivated land in the hilly area of Faku County is moderate.

With the maturity of consumers’ pursuit of quality of life and the rise in the level of needs, international relations, especially international economic and trade relations, have been severely affected. Green barriers have gradually become an important factor hindering the development of international trade, and China’s organic food exports also face major problems.Therefore, this article analyzes the market conditions and regulations of organic food in the world, studies the demand of organic food producers and exporters in China for the target market, and provides reference for China’s organic food trade.

Abstract. At present, with the increasing demand of electric power resources, the power marketing management becomes more and more complicated, and new requirements of power market management are put forward. According to the current status of the development of electricity market, it will be very important for the development of power marketing market to establish a sound power marketing strategy. This paper makes an in-depth analysis of the power management information system of power supply enterprises. At the same time, the management of power marketing at home and abroad is also discussed, and the existing management system and power demand of power supply enterprises are investigated deeply, especially the functional requirements and non-functional requirements study for the module inside system. The system design is finished from system module division, system module function, system data design and so on. The system uses the more popular Java development tool platform to achieve J2EE architecture as based framework using J2EE components.