SQL>show userUSER为"HR"SQL>SELECTfirst_name,last_name,department_id,2CASEdepartment_id3WHEN10THEN'Accounting'4WHEN20THEN'Sales'5WHEN30THEN'Finance'6ELSE'Other'7ENDdepartment_name8FROMemployees where rownum<2;FIRST_NAMELAST_NAMEDEPARTMENT_IDDEPARTMENT_NAME---Steven King90OtherSQL> ※测试使用的Orac...
–简单Case函数 CASE sex WHEN ‘1’ THEN ‘男’ WHEN ‘2’ THEN ‘女’ ELSE ‘其他’ END ...
06oracle之条件表达式(case、decode)、多行函数、嵌套函数、分组子句的要求、Where和having的选择,条件表达式:条件表达式的作用是:在SQL语句中使用判断的逻辑(类似于IF-THEN-ELSE)来呈现个性化的数据。条件判断语句有两种:
oraclecasewhere复杂sql语句update hr_user u set u.is_approve=(case when u.curr_org_id in (select t.org_id from hr_organization t start with t.org_id =10001263 connect by prior org_id = t.org_id_parent) then 'N'ELSE 'Y'END);update hr_user u set u.is_approve=(case when u....
case when e.salary>=10000 then 'good' when e.salary>5000 and e.salary < 10000 then 'middle' else 'poor' end as salary_type from hr.employees e 结果: EMPLOYEE_ID SALARY_TYPE --- --- 100 good 101 good 102 good 103 middle 104...
whereFUserID='AAA613'orderbyFInnerCodedesc --sql的 SELECTau_fname, au_lname, CASEstate WHEN'CA'THEN'California' WHEN'KS'THEN'Kansas' WHEN'TN'THEN'Tennessee' WHEN'OR'THEN'Oregon' WHEN'MI'THEN'Michigan' WHEN'IN'THEN'Indiana' WHEN'MD'THEN'Maryland' ...
To do this, ensure thesql_transpilerparameter ison(it'soffby default). When a function in thewhereclause is transpiled, you can see the case expression instead of the function in the predicate section of the plan: There are a few differences betweencasein PL/SQL andOracle SQL. ...
UPDATEtestSETc1=(CASEWHENc1=1THEN2WHENc1=2THEN1END)WHEREc1IN(1,2); Oracle 实例的的字符集配置可以为 AL32UTF8、AL16UTF16、ZHS16GBK 和 GB18030。如果源端字符集为 UTF-8,建议目标端使用兼容源端的字符集(例如,UTF-8、UTF-16 等),避免产生因字符集不兼容导致目标端出现乱码等问题。
CASE表达式可以再SQL中实现if-then-else型的逻辑,9i及以上版本支持CASE表达式。 1. 使用简单CASE表达式 语法如下: CASE search_expression WHENexpression1 THEN result1 … ELSEdefault_result END store@PDB1> select product_id,product_type_id,caseproduct_type_id ...
TARGET_RESULTS :=TARGET_RESULTS||'FROM IEW_V_PRO_USER a LEFT JOIN (SELECT DISTINCT PROJECTID,TIME from V_IEW_ACC_DETAIL_DATA WHERE TIME <= '''||2020||''') b ON a.ID = b.PROJECTID '; TARGET_RESULTS :=TARGET_RESULTS||'LEFT JOIN (SELECT T.*,(CASE WHEN t.START_YEAR IS NULL...