FORMAT_TIMESTAMP('%X', fastest_time) AS fastest_time, TIMESTAMP_DIFF(finish_time, fastest_time, SECOND) AS delta_in_seconds FROM ( SELECT name, finish_time, division, FIRST_VALUE(finish_time) OVER (PARTITION BY
The FIRST_VALUE analytic function returns the first value in an ordered set of values provided by the windowing expression. FIRST_VALUE can only be used in the context of awindowing expression. Syntax FIRST_VALUE_Expression := 'FIRST_VALUE' '('expression')'. ...
Returns the first value in an ordered set of values.Transact-SQL syntax conventionsSyntaxsyntaxsql העתק FIRST_VALUE ( [ scalar_expression ] ) [ IGNORE NULLS | RESPECT NULLS ] OVER ( [ partition_by_clause ] order_by_clause [ rows_range_clause ] ) ...
FIRST_VALUE (expression) [ {RESPECT | IGNORE} NULLS ]) OVER ( [ query_partition_clause ] order_by_clause [frame_clause] )Code language:SQL (Structured Query Language)(sql) In this syntax: expression is an expression evaluated against the value of the first row in the window frame specifie...
FIRST_VALUE returns the evaluation of the <value expression> from the first row that qualifies for the aggregate. FIRST_VALUE requires the OVER clause, and is considered an . FIRST_VALUE has a null treatment option defined in the following table.
SQL 语法 系统租户 普通租户(MySQL 模式) 基本元素 运算符 序列伪列 函数 函数概述 单行函数 聚合函数 分析函数 APPROX_COUNT_DISTINCT AVG BIT_AND BIT_OR BIT_XOR COUNT CUME_DIST DENSE_RANK FIRST_VALUE LAG LAST_VALUE LEAD MAX MIN NTH_VALUE NTILE PERCENT_RANK RANK ROW_NUMBER STD STDDEV STDDEV_POP...
FIRST_VALUEis an analytic function. It returns the first value in an ordered set of values. If the first value in the set is null, then the function returnsNULLunless you specifyIGNORE NULLS. This setting is useful for data densification. ...
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This function is used to obtain the value of the first data record in the window corresponding to the current row.The restrictions on using window functions are as follow
This function is used to obtain the value of the first data record in the window corresponding to the current row.The restrictions on using window functions are as follow