In our research we offer detailed study of one of the data mining functions within the text data using the object properties in databases. It studies the possibility of applying this function on the Arabic texts. We use procedural query language PL / SQL that deals with the object of Oracle databases. Data mining model Has been built. It works on classification of Arabic texts documents using SVM algorithm for indexing of texts and texts preparation, Naïve Bayes algorithm to classify data after transformation it into nested tables. So we made an evaluation of the obtained results and conclusions.