Here is the query using the IN operator. Note the simplicity of the query by removing the repeated OR operator. -- Main query to select employee_id and name from the employees table SELECT employee_id, name FROM employees -- Filter employees based on a list of department names using the ...
`idx_age_name` (`age`,`name`) ) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8 1 row in set (0.00 sec) mysql> insert into t_index(age, name) values(8, "Tom"),(8, "David"), (10, "Andy"); Query OK, 3 rows affected (0.00 sec) Records: 3 Duplicates: 0 Warnings: 0 ...
select *from tblemployee where employeeid in(1,10) the result of this is: it will display the result of all the employees which they r having the employee id from 1 to 10 if this post is not correct to ur query then let me know in detail ...
WHERECustomerIDIN(SELECTCustomerIDFROMOrders); Try it Yourself » NOT IN (SELECT) The result in the example above returned 74 records, that means that there are 17 customers that haven't placed any orders. Let us check if that is correct, by using theNOT INoperator. ...
,GETDATE(),'SHANU')INSERTINTO [ItemMasters] ([Item_Code],[Item_Name],[Price],[TAX1],[Discount],[Description],[IN_DATE] ,[IN_USR_ID],[UP_DATE],[UP_USR_ID])VALUES ('Item003','Chiken Burger',125,2,5,'Spicy',GETDATE(),'SHANU' ...
The SQL query can't contain related data. However, in many cases you can compose on top of the query using theIncludeoperator to return related data (seeIncluding related data). Collaborate with us on GitHub The source for this content can be found on GitHub, where you can also create an...
SQL的全称是Sructured Query Language,结构化查询语言。SQL是操作和检索关系数据库的标准语言,标准的SQL语句可用于操作任何关系数据库使用SQL语句,程序员和数据库管理员(DBA)可以完成如下任务:在数据库中检索信息 对数据库的信息进行更新 改变数据库的结构 更改系统的安全设置 增加或回收用户对数据库、表的许可权限...
;predicate[ParserRuleContext value]:comparisonOperator right=valueExpression #comparison|comparisonOperator'('query')'#quantifiedComparison|NOT?BETWEENlower=valueExpressionANDupper=valueExpression #between|NOT?IN'('expression(','expression)*')'#inList|NOT?IN'('query')'#inSubquery|NOT?LIKEpattern=value...
digoal=# set cpu_operator_cost=1; SET 这次要走索引扫描, digoal=# set enable_scqscan=off; set enable_bitmapscan=off; explain(analyze,verbose,costs,buffers,timing) select * from tbl_cost_align where id>1998999963; QUERY PLAN Index Scan using idx_tbl_cost_align_id on postgres.tbl_cost_ali...
','Structured Query Language (SQL) is a standardized programming language that is used to manage relational databases and perform various operations on the data in them. ...'), ('Differences between MySQL and SQL Server','MyISAM and InnoDB —— These engines are configurations for MySQL, ...