... Placeholders(占位符) Operator expressions(操作符表达式) Bind expressions(bind 表达式) ...
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Inline operator expressions 线算子表达式
Generate the expression for the join predicate by applying the join operator to the expressions for the left and right attributes.
将联结操作符应用于左右属性的表达式,从而产生联结谓词的表达式。
The WHERE clause contains two expressions that are joined by the or operator, which means that if either expression evaluates as TRUE for a specific row, that row will be deleted.
where子句包含由OR操作符联结的两个表达式,这意味着对于特定行,如果任一表达式值为TRUE,则将删除该行。
Expressions must not end with an operator, function, comma, or opening parenthesis.
不可以用操作符、函数、逗号或开括号作为表达式结束符。
And in Python the expression is, operand, operator, operand, when we're doing simple expressions like this, and if I give it to the interpreter, it gives me back exactly what you'd expect, which is that value. OK?
在Python中表达式就是,运算对象,操作符,运算对象,当我们处理这样的简单表达式的时候,我把表达式传给处理器,处理器给我返回了我想要的结果,对不对?
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