name,…)VALUES({expr,value},…)ON DUPLICATE KEY UPDATE SET col1=expr1[,col2=expr2…][WHERE where_definition]是 UPDATE UPDATE tb1 SET col1=expr1[,col2=expr2…][WHERE where_definition]是 DELETE DELETE FROM tb1[WHERE where_...
本文介绍WHERE子句与使用方式。语法 可选的 WHERE 子句具有以下形式：WHERE condition 其中，condition 是任何求值结果类型为 BOOLEAN 的表达式。将从输出中删除任何不满足此条件的行。当实际行值替换为任何变量引用时，如果行返回 TRUE，...
(SELECT*FROM A WHERE {subquery_where_condition} A)A JOIN(SELECT*FROM B WHERE {subquery_where_condition} B)B ON {on_condition} WHERE {where_condition} 计算顺序如下：子查询中的WHERE子句（即 {subquery_where_condition}）。...
WHERE子句根据field、tag和/或timestamp来过滤数据。语法 SELECT_clause FROM_clause WHERE[(AND|OR)[.]]语法描述 WHERE子句支持在field、tag和timestamp上的条件表达式（conditional_expression）。field field_key['string'|boolean|...
dtx_config 使用 delete from dtx_transaction where tx_id="xxxxxx"命令清除事务统计表的数据：使用如下命令清除异常任务信息：delete from business_action_01 where tx_id="XXXXXX"delete from business_activity_01 where tx_id=...
例如 select*from table where a=10 and b;如果a=10返回的结果只有1000条，b返回的结果有一亿条，则在存储层将1000条结果与一亿条结果做合并比较耗时，此时把b提到计算层，Spark只需要对存储层返回的1000条数据作过滤，大大降低了存储层的...
语法 SELECT setQuantifier selectItem(',' selectItem)*(FROM relation(',' relation)*)(WINDOW windowExpression)(WHERE where=booleanExpression)(GROUP BY groupBy);selectItem 说明 参数值 说明 语句示例*查询所有列。SELECT*FROM ...
语法 SELECT(select_clause|'*')FROM table_name[WHERE where_clause][ORDER BY ordering_clause][LIMIT integer]|[LIMIT integer,integer]select_clause:=selector[AS identifier](',' selector[AS identifier])selector:=column_name|...
本文介绍了DELETE语法的简介、使用方法以及示例等内容。描述 DELETE 从指定表中删除满足 WHERE 子句的行。如果 WHERE 子句没有出现，效果将会是删除表中的所有行。结果是一个合法的空表。说明 TRUNCATE 支持快速移除表中所有行。有两种方式...
select a,b,c from(select*,row_number()over(partition by a order by c)as rk from MyTable)where rk;输出rank number字段：rk，该修改属于完全兼容修改。select a,b,c,rk from(select*,row_number()over(partition by a order by c)as ...
单逻辑表 DELETE[LOW_PRIORITY][QUICK][IGNORE]FROM[schema_name.]tbl_name[WHERE where_condition]多逻辑表 DELETE[LOW_PRIORITY][QUICK][IGNORE]tbl_name[.*][,tbl_name[.*]].FROM table_references[WHERE where_condition]DELETE[LOW_...
问题描述 Quick BI报表报错”Unknown column 'XXX' in 'where clause'“是什么原因？问题原因 查询控件的条件使用的占位符设置不正确，没有带单引号，导致查询条件数据值没有正确识别到。解决方案 修改数据集SQL，占位符变量要使用单引号，...
DML语句支持 类型 SQL 实例 是否支持 AND&OR UPDATE…WHERE col_name1=expr1 AND col_name2=expr2 是 LIKE UPDATE.WHERE col_name1 LIKE 'NE' 是 通配符 UPDATE.WHERE col_name1 LIKE 'NE%' 是 BETWEEN UPDATE.WHERE col_name1 BETWEEN ...
select a,b,c from(select*,row_number()over(partition by a order by proctime asc)as rk from MyTable)where rk=1;新增输入字段：d，该修改属于完全兼容修改。select a,b,c,d from(select*,row_number()over(partition by a order by ...
语法 SELECT[ALL|DISTINCT|DISTINCTROW]select_expr[,select_expr].[FROM table_references|join_expr][WHERE where_condition][GROUP BY groupby_condition][HAVING having_condition][ORDER BY order_condition][LIMIT {[offset,]row_...
simple_ranges 1 SELECT c FROM sbtest100 WHERE id BETWEEN?AND?sum_ranges 1 SELECT SUM(k)FROM sbtest100 WHERE id BETWEEN?AND?order_ranges 1 SELECT c FROM sbtest100 WHERE id BETWEEN?AND?ORDER BY c distinct_ranges 1 SELECT ...
在这些场景里，柔性事务能够很好的保证事务原子性，并且提供良好的性能。...SET autocommit=0;SET drds_transaction_...回滚库存数据：UPDATE inventory SET stock=stock+1 WHERE id=123 回滚优惠券使用：UPDATE coupon SET used=0 WHERE id=789
DELETE table_name1 FROM table_name1[INNER JOIN|LEFT JOIN|RIGHT JOIN]table_name2 ON table_name1.column1=table_name2.column1[WHERE where_condition]示例 删除customer表中 name 为 张三 的数据。DELETE FROM customer WHERE ...
WHERE子句 当查询SQL的WHERE子句与物化视图SQL不完全相同时，自动查询改写对WHERE子句支持情况如下：当查询SQL和物化视图SQL的WHERE都是由AND连接多个条件时：支持查询SQL的WHERE的多个条件的顺序与物化视图SQL的不同，示例如下：物化视图...
SQL4 select o_orderpriority,count(*)as order_count from orders where o_orderdate>=date '1996-07-01' and o_orderdate(select*from lineitem where l_orderkey=o_orderkey and l_commitdate)group by o_orderpriority order by o_...
ARRAY查询 SELECT id,vj FROM json_test WHERE json_extract(vj,'$.addr[0].city')='beijing' and json_extract(vj,'$.addr[1].no')=0;说明 查询ARRAY数据时，支持使用指定数据下标取值，序号从0开始递增，暂不支持遍历整个数组。相关文档 ...
注意事项 max_pt 函数也可以使用标准SQL实现，select*from table where pt=max_pt("table");可以改写为 select*from table where pt=(select max(pt)from table);说明 MaxCompute未提供 min_pt 函数。如果您需要获取分区表中有数据的最小...
SELECT 获奖记录,MAX(获奖时间)FROM 获奖记录表 WHERE 获得奖项='金奖' GROUP BY 获奖记录"值比较条件 WHERE子句支持等于、大于、小于、不等于运算符 学位为学士,审查通过人数大于20小于30的招考人数是多少 SELECT 招考人数 FROM 招考信息...
语法 select_statement:=SELECT[JSON|HOTDATA](select_clause|'*')FROM table_name[WHERE where_clause][GROUP BY group_by_clause][ORDER BY ordering_clause][PER PARTITION LIMIT(integer|bind_marker)][LIMIT(integer|bind_marker)]...
Q4 select o_orderpriority,count(*)as order_count from orders where o_orderdate>=date '1996-08-01' and o_orderdate(select*from lineitem where l_orderkey=o_orderkey and l_commitdate)group by o_orderpriority order by o_...
语法 delete_statement:=DELETE FROM table_identifier WHERE where_clause where_clause:=relation((AND|OR)relation)*relation:=(column_identifier)operator term operator:='='|'!'|IN|CONTAINS|CONTAINS KEY 使用说明 重要 DELETE操作...
语法 单逻辑表 UPDATE[LOW_PRIORITY][IGNORE][schema_name.]tbl_name SET assignment_list[WHERE where_condition]value:{expr|DEFAULT} assignment:col_name=value assignment_list:assignment[,assignment].多逻辑表 UPDATE[LOW_PRIORITY...
语法 SELECT[hint_clause](select_clause|'*')FROM table_name[WHERE where_clause][GROUP BY group_by_clause][ORDER BY ordering_clause][LIMIT integer[OFFSET integer]]|[LIMIT integer,integer]select_clause:=selector[AS identifier...
Q4 select o_orderpriority,count(*)as order_count from orders where o_orderdate>=date '1996-08-01' and o_orderdate(select*from lineitem where l_orderkey=o_orderkey and l_commitdate)group by o_orderpriority order by o_...
是 UPDATE UPDATE tb1_name SET col_name1=expr1[,col_name2=expr2.][WHERE where_definition]是 DELETE DELETE FROM tb1_name[WHERE where_definition]是 SELECT SELECT[ALL|DISTINCT|DISTINCTROW]select_expr,.FROM tb1_name[WHERE where...
操作符 操作符 示例*from test where id*from test where id*from test where id=1>=select*from test where id>=1>select*from test where id>1 between and select*from test where id between 1 and 10 in select*from test where id in...
问题描述 Dataphin管道任务失败，报错“error occurred where call hadoop api”。问题原因 Hive表字段改动导致。Hive表字段改动是要更新管道任务配置的，Hive输出组件的配置要求Hive表字段全部映射，否则就不允许提交，如果是TEXTFILE格式...
示例 sum：SELECT brand,SUM(price)FROM phone WHERE nid,MIN(price)FROM phone WHERE nid,MAX(price)FROM phone WHERE nid,COUNT(*)FROM phone WHERE nid,AVG(price)FROM phone WHERE nid子句：SELECT brand FROM phone GROUP BY brand ...
语法 delete_statement:=DELETE FROM table_name WHERE where_clause 说明 Where_Clause必须可以唯一限定一行数据。语法限制 DELETE的WHERE子句中，必须给出能够唯一定位一行数据的完备主键条件。一条DELETE语句只能删除一行数据，不支持一...
explain select.from xxxxx_base2_brd_ind_cw where ds=concat(SPLIT_PART(bi_week_dim('${bdp.system.bizdate}'),',',1),SPLIT_PART(bi_week_dim('${bdp.system.bizdate}'),',',2))说明 UDF已支持分区裁剪，详情请参见 WHERE子句过滤...
SELECT o_orderpriority,count(*)AS order_count FROM orders WHERE o_orderdate>=date'1993-07-01' AND o_orderdate(SELECT*FROM lineitem WHERE l_orderkey=o_orderkey AND l_commitdate)GROUP BY o_orderpriority ORDER BY o_...
问题描述 查询报表中报错 INTERNAL:Java.sqlSQLSyntaxErrorExceptlon:Unknown column 'n2.pr0Ject name' In 'where clause'。问题原因 由于SQL脚本中存在不识别的列，导致查询时报错。解决方案 打开SQL数据集编辑界面，修改SQL脚本，验证...
示例如下：UPDATE/*+ROLLBACK_ON_FAIL*/T SET c=c-1 WHERE id=1 ERROR 7531(HY000):Inventory transactinal hints didn't allowed in autocommit mode 语法 PolarDB 提供的Inventory Hint支持SELECT、UPDATE、INSERT、DELETE语句。...
WHERE 子句中使用正则表达式指定tag value"class="reference-link">在 WHERE 子句中使用正则表达式指定tag value>SELECT MEAN(water_level)FROM"h2o_feet"WHERE"location"=~/[m]/AND"water_level">3 name:h2o_feet time mean-1970-01-01T00...
示例 sum：SELECT brand,SUM(price)FROM phone WHERE nid,MIN(price)FROM phone WHERE nid,MAX(price)FROM phone WHERE nid,COUNT(*)FROM phone WHERE nid,AVG(price)FROM phone WHERE nid子句：SELECT brand FROM phone GROUP BY brand ...