John Haydu

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Commercial relational database systems lack support for complex business modeling. ANSI SQL cannot treat relations as multidimensional arrays and define multiple, interrelated formulas over them, operations which are needed for business modeling. Relational OLAP (ROLAP) applications have to perform such tasks using joins, SQL Window Functions, complex CASE(More)
This report is one in a series of Southern Cooperative bulletins. Under the cooperative publication procedure, it becomes, in effect, a separate publication for each of the cooperating stations. The lead station for this study was the Abstract Marketing-and production-related data have been collected as part of the S-1021 Research Committee=s activity since(More)
Information is presented on production, employment, marketing, and product quality and price as a result of a survey of the Florida sod industry for the year 2000. Total sod production in Florida was estimated to be 79,820 acres. Sixty-five percent of Florida sod acreage is St. Augustinegrass, 79 percent of which is Floratam, with Palmetto and Floralawn at(More)
In 1998 the International Turfgrass Producers' Foundation (ITPF) partially funded a unique research project to identify practical marketing strategies for increasing the demand for sod in the Eastern U.S. This research, implemented by the University of Florida, consisted of two sequential steps. In the first step, case studies were conducted in six states(More)
Information is presented on production, employment, marketing, product quality and price as a result of a mail and internet survey of the Florida sod industry for the year 2007, the fifth in a series of surveys since 1992. Total sod production in Florida was estimated to be 103,923 acres in 2007. Fifty-one percent of Florida sod acreage was St.(More)
An economic impact study of Florida's environmental horticulture industry in year 2000 was conducted with a telephone survey of over 2,200 businesses and households, and the use of regional economic models to determine the multiplier effect of income derived from outside the region. The study also assessed the impact of the ongoing drought in Florida and(More)