Logic statements like while and switch that allow flexible business processes that can change process flow based on the specific case 像while和switch這樣的邏輯語(yǔ)句,提供了靈活的業(yè)務(wù)流程,可以根據(jù)特定的情況改變流程
Clauses can be grouped to operate as a single unit separate from the rest of the query ; like putting parentheses around an expression in a mathematical equation or logic statement 可以對(duì)子句進(jìn)行分組,使其作為獨(dú)立于查詢的其余部分的一個(gè)單元來(lái)工作,這類似于在數(shù)學(xué)等式或邏輯語(yǔ)句中的表達(dá)式兩側(cè)加上括號(hào)。
Query clauses can be grouped to operate as a single unit separate from the rest of the query , similar to putting parentheses around an expression in a mathematical equation or logic statement . when you group clauses , the 可以對(duì)查詢子句進(jìn)行分組,使其作為獨(dú)立于查詢的其余部分的一個(gè)單元來(lái)工作,這類似于在數(shù)學(xué)等式或邏輯語(yǔ)句中的某個(gè)表達(dá)式兩側(cè)加上括號(hào)。