SELECT DISTINCT employee_name, employee_location from employee; If we run the SQL above, it will return this: employee_name employee_location Joe New York Sunil India Alex Russia Albert Canada Jack New York Note that the one extra entry for "Alex, Russia" is missing in the result ...
clear(); orderByClause = null; distinct = false; rows = null; offset = null; } } public class Test { public static void main(String[] args) { this.tbMapper.selectByExample( new TbExample() .createCriteria() .andField1GreaterThan(1) .example() .limit(10) // 查询前10条 .limit(10...
// This example program shows examples of // various common tasks that can be done // with distinct types. /// import java.sql.*; public class Distinct { public static void main(String[] args) throws SQLException { // Register the native JDBC driver. try { Class.forName("com.ibm.db2...
Programming Microsoft SQL Server 2022 Aggregate Functions This is a preview of subscription content Log in to check access Details This video segment describes count and sum functions. Keywords COUNT SUM APPROXIMATE COUNT DISTINCT PARTITIONS About this video Author(s) Angelo Bobak First online ...
Exception message=DB user $(DB_USER)$ has searched for name in database $(DB_NAME)$ Distinct=blank SR languageexamples Alerts are not available in theSR language. To use theSR languageto do a similar action, use the LIKE parameter and THROW_EXCEPTION action, for example: ...
The GROUP BY clause is at its most powerful when used with summarizing and aggregating functions of SQL, which are covered in the next section. The GROUP BY clause is also very useful with subqueries. The aim of this module is to get a handle on how GROUP BY works; the next section ...
Bitmap Indexes are most appropriate on low distinct cardinality data (as opposed to B-Tree indexes). This type of index creates a binary map of all index values, and stores that map in the index blocks, this means that the index will require less space than the B-Tree index. ...
Used to delete all rows in a table, including cases of truncate and cases where the optimizer realizes that all rows will be removed as a result of an SQL statement. Called from item_sum.cc by Item_func_group_concat::clear(), Item_sum_count_distinct::clear(), and Item_func_group_con...
SQL SELECT DISTINCT Examples Using MERGE in SQL Server to insert, update and delete at the same time SQL INSERT INTO SELECT Examples SQL UPDATE Statement SQL Update Statement with Join in SQL Server vs Oracle vs PostgreSQL The T-SQL DELETE statement ...
DepartmentExample表示一个SQL语句的where、distinct、order by部分的描述;其中where部分表示Criteria的集合,元素间使用or连接 使用一个例子进行说明 1SELECTDISTINCT2*3FROM4maintainbill5WHERE6(7fState='已完成'8AND9fItemTypeLIKE'%网络%'10)11OR(12fState='待安排'13AND14fItemTypeLIKE...