If you want to look up the previous row instead of the next row, use the LAG function instead of LEAD. LAG Function Syntax and Parameters The syntax of the SQL LAG function is: LAG ( expression [, offset [, def
The following example demonstrates specifying various arbitrary expressions and ignoring NULL values in the LAG function syntax.sql העתק CREATE TABLE T (a INT, b INT, c INT); GO INSERT INTO T VALUES (1, 1, -3), (2, 2, 4), (3, 1, NULL), (4, 3, 1), (5, 2, ...
The following example demonstrates specifying a variety of arbitrary expressions in the LAG function syntax. Copy CREATE TABLE T (a int, b int, c int); GO INSERT INTO T VALUES (1, 1, -3), (2, 2, 4), (3, 1, NULL), (4, 3, 1), (5, 2, NULL), (6, 1, 5); SELECT b...
The following example demonstrates specifying various arbitrary expressions and ignoring NULL values in the LAG function syntax.SQL Kopiuj CREATE TABLE T (a INT, b INT, c INT); GO INSERT INTO T VALUES (1, 1, -3), (2, 2, 4), (3, 1, NULL), (4, 3, 1), (5, 2, NULL), (...
Syntax lag(<expr>[,bigint<offset>[,<default>]])over([partition_clause] orderby_clause) Parameters Table 1Parameters Parameter Mandatory Description expr Yes Expression whose return result is to be calculated offset No Offset. It is a constant of the BIGINT type and its value is greater than...
syntaxsql 複製 LAG (scalar_expression [ , offset ] [ , default ] ) [ IGNORE NULLS | RESPECT NULLS ] OVER ( [ partition_by_clause ] order_by_clause ) 引數 scalar_expression 根據指定的位移傳回數值。 它是傳回單一 (純量) 值的任一類型運算式。 scalar_expression 不能是分析函數。 offse...
syntaxsql复制 LAG(scalar_expression[ , offset ] [ , default ] ) [IGNORENULLS|RESPECTNULLS]OVER( [partition_by_clause]order_by_clause) 参数 scalar_expression 要根据指定偏移量返回的值。 这是一个返回单个(标量)值的任何类型的表达式。 scalar_expression 不能为分析函数。
Syntax lag(<expr>[,bigint<offset>[,<default>]])over([partition_clause] orderby_clause) Parameters Table 1Parameters Parameter Mandatory Description expr Yes Expression whose return result is to be calculated offset No Offset. It is a constant of the BIGINT type and its value is greater than...
syntaxsql复制 LAG(scalar_expression[ , offset ] [ , default ] ) [IGNORENULLS|RESPECTNULLS]OVER( [partition_by_clause]order_by_clause) 参数 scalar_expression 要根据指定偏移量返回的值。 这是一个返回单个(标量)值的任何类型的表达式。 scalar_expression 不能为分析函数。
syntaxsql LAG(scalar_expression[ , offset ] [ , default ] ) [IGNORENULLS|RESPECTNULLS]OVER( [partition_by_clause]order_by_clause) 引數 scalar_expression 根據指定的位移傳回數值。 它是傳回單一 (純量) 值的任一類型運算式。scalar_expression不能是分析函數。