ORA-25241: cannot change correlation ID from string to string without FIRST_MESSAGE option
文档解释ORA-25241:cannotchangecorrelationIDfromstringtostringwithoutFIRST_MESSAGEoptionCause:AnattemptwasmadetochangethecorrelationIDwhileusingtheNEXT_MESSAGEorNEXT...
ORA-32582: table function with left correlation to a table cannot also be left outer-joined to the table
文档解释ORA-32582:tablefunctionwithleftcorrelationtoatablecannotalsobeleftouter-joinedtothetableCause:AtablefunctionT2containsareferencetoatableT1.T2isalsoleftouter...
皮尔逊相关系数（Pearson Correlation Coefficient，Pearson's r）
Pearson'sr，称为皮尔逊相关系数（Pearsoncorrelationcoefficient），用来反映两个随机变量之间的线性相关程度。 用于总体（population）时记作ρ (rho)（populationcorrelationcoefficient）：给定两个随机变量X,Y，...
