the subquery is re-evaluated only once for each set of differentvalues of the variables from its outer context. For UNCACHEABLE SUBQUERY, thesubquery is re-evaluated for each row of the outer context. Cacheability ofsubqueries is subject to the restrictions detailed in Section 7.9.3.1, “...
Independent vs. Dependent Variables | Definition & Examples from Chapter 13 / Lesson 12 91K Learn about independent vs. dependent variables. Discover how to identify different kinds of variables, and study examples of independent and dependent variables. Related...
Under certain conditions the plan shown when using EXPLAIN PLAN can be different from the plan shown using V$SQL_PLAN. For example, when the SQL statement contains bind variables the plan shown from using EXPLAIN PLAN ignores the bind variable values while the plan shown in V$SQL_PLAN takes ...
Students' belief about the cause of their failure explains their attitude toward setbacks. 出自-2016年12月阅读原文 I realized these different types of students not only explain their failures differently, but they also hold different theories of intelligence. 出自-2016年12月阅读原文 Gamification is ...
For DEPENDENT SUBQUERY, the subquery is re-evaluated only once for each set of different values of the variables from its outer context. For UNCACHEABLE SUBQUERY, the subquery is re-evaluated for each row of the outer context. Cacheability of subqueries differs from caching of query results ...
87. The change of variables to the m–ω space is obtained by using the dispersion relation Eq. (7). The search for the solutions of the six branches of the resonant manifold (see Fig. 2) with f≠ 0 is performed iteratively starting from the exact solutions of the f = 0 case...
Arranging your data that way, however, gets in the way of Excel's abilities to use a clean array of data as a database and, based on that, perform the kind of summaries, data extractions--analyses of various types--that Excel excels at. ...
Bind Variables Bind variables are recommended in most cases because they promote sharing of sql code At parse time the parser has NO IDEA what the bind variable contains. With RBO this makes no difference but with CBO, which relies on accurate statistics to produce plans, this can be a probl...
Predictive models aim to guess, a.k.a., predict, values of a variable of interest based on other variables. It has been used throughout the entire human history and many statistical models have been developed for prediction during the last century. This book covers methods for exploration of...
For DEPENDENT SUBQUERY, the subquery is re-evaluated only once for each set of different values of the variables from its outer context. For UNCACHEABLE SUBQUERY, the subquery is re-evaluated for each row of the outer context. When you specify FORMAT=JSON with EXPLAIN, the output has no ...