DTS_E_BITASK_ERROR_IN_LOAD_FROM_XML DTS_E_BITASK_ERROR_IN_SAVE_TO_XML DTS_E_BITASK_EXECUTE_FAILED DTS_E_BITASK_EXECUTION_FAILED DTS_E_BITASK_HANDLER_NOT_FOUND DTS_E_BITASK_INITIALIZATION_WITH_WRONG_XML_ELEMENT DTS_E_BITASK_INVALID_CONNECTION DTS_E_BITASK_INVA...
ScheduledQueryRule.Runtime Microsoft.Azure.PowerShell.Cmdlets.Monitor.ScheduledQueryRule.Runtime.Json Microsoft.Azure.PowerShell.Cmdlets.Monitor.ScheduledQueryRule.Runtime.PowerShell Microsoft.Azure.PowerShell.Cmdlets.Monitor.ScheduledQueryRule.Support
其次,ORACLE数据库中空字符串被视为NULL处理,因此数据库SQL函数中字段值为' '(空格)的被 RTRIM(LRTRIM(a.Name)) 调用后结果并非空字符串,而是NULL。所以需要注意:[TestMethod()] public void TestEdmQuery() { using (ServerContext sc = WcfServiceHelper.CreateServerContext(ClientContext.Instance)) { using...
Aging Report SQL Query Alias all columns in a given table Alias column with variable value in SQL Script All MonthNames and Month numbers in sql server All queries combined using a UNION, INTERSECT or EXCEPT operator must have an equal number of expressions in their target lists. all the even...
After installation, Confluence will not start. The following appears in the user interface: Original Exception: Error Message: Hibernate operation: Could not execute query; bad SQL grammar []; nested exception is java.sql.SQLException: ORA-00942: table or view ...
NOT IN 和 <>ALL 对 NULL 值敏感,这意味着 NOT IN 后面的子查询或者常量集合一旦有 NULL 值出现,则整个 SQL 的执行结果就会为 NULL。 所以一旦相关的连接列上出现了 NULL 值(实际只会判断字段是否有 NOT NULL 约束),此时 Oracle 如果还按照通常的 ANTI JOIN 的处理逻辑来处理(实际和 INNER JOIN 的处理逻...
cd /u01/oracle/diag/rdbms/repo/repo/trace cat repo_ora_6702_10053c.trc 在 "Final query after transformations" 部分即为优化器改写后的SQL,关联条件也是等值查询: Final query after transformations:*** UNPARSED QUERY IS *** SELECT "T_LDIM_AGENT_UPREL"."AGENT_ID" "AGENT_ID",MAX("T_LDIM...
前段时间碰到一个慢 SQL,NOT IN 子查询被优化器改写成了 NESTED-LOOP ANTI JOIN,但是被驱动表全表扫描无法使用索引,执行耗时 16 秒。SQL 如下: 代码语言:javascript 复制 SELECTAGENT_ID,MAX(REL_AGENT_ID)FROMT_LDIM_AGENT_UPRELWHEREAGENT_IDNOTIN(selectAGENT_IDfromT_LDIM_AGENT_UPRELwhere valid_flg=...
Issue description I accidentally passed an object of type { id: string, milliseconds: number } to QueryBuilder's cache method instead of an id and a TTL. Expected Behavior I should get an error message saying that such a type does not ap...
可以看出,not exists表示的关联子查询与 外连接方式表达的两条语句结果相同,而not in表示的非关联子查询的结果集为空。这是因为子查询select t2.c2 from t2查询结果含有NULL值导致的。NULL属于未知值,无法与其他值进行比较,无从判断,返回最终结果集为空。这一点在MySQL与Oracle中返回结果都是一致的。如果想表达最...