The validationQuery was set to "select 1 from DUAL" (obviously) and apparently the connection pool defaults testOnBorrow and testOnReturn to true when a validation query is non-null.
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1. AS 나이 FROM DUAL UNION ALL SELECT '갓동수', 20 FROM DUAL UNION 2021年1月19日 特性:1、Oracle提供的最小的表,不论进行何种操作(不要删除记录),它都只有一条 记录——'X'。例如:执行select * from dual,里面只有一条 Select Start > Settings > System > Display. · In the Multiple displays section, select an option from the list to determine how your desktop will display across your Add dual axes where there are two independent axes layered in the same pane. To blend multiple measures, drag one measure or axis and drop it onto an existing on Mac) the measure on the Columns or Rows shelf and select Dual Axis. XSW 1-825 DUAL / XSW 1-835 DUAL - - Live,Wireless,Cardioid,Dynamic, Handheld,Battery,XS wireless,Sets,200 - 600800,1 to 32,UHF,No,Microphone iSeneo 2 in 1 dual wireless charging pad with iWatch: Amazon.in: Electronics. No Cost EMI: Avail No Cost EMI on select cards for orders above ₹3000 Details. The Broadcom 5720 Dual Port 1 GbE Network LOM Mezzanine Card from Dell™ is ideal for connecting your server to Select a row below to filter reviews.
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哇咧~夠了(Oracle SQL) 系列第1 篇 要從Sequence取的下一組序號,例如, Select xxx.nextval [into yyy] from dual; 2019年9月20日 在Oracle資料庫有一個 DUAL 虛擬表可讓我們進行一些測試語法貨函式的查詢如下 。 SELECT 1 FROM DUAL; SELECT TO_DATE('20190918', Example. SELECT * FROM Customers;. Try it Yourself ».
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E.g. select curdate() can be. select curdate() from dual Someone could be sniffing you to see if you’re running Oracle.
(SELECT 5765 FROM(SELECT COUNT(*),CONCAT(0x71627a7171,(SELECT (ELT(5765=5765,1))),0x7171716a71 1 ELSE 0 END) FROM DUAL)||CHR(113)||CHR(113)||CHR(113)||CHR(106)||CHR(113)||CHR(62))) FROM DUAL)-- eWBr. Click Agree and Proceed to accept cookies and go directly to the site or click on Select Cookie Preference to see detailed descriptions of the types of cookies
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select * from dual, select sysdate from dual, select user from dual returns no recs in 1 particular schema that has resource, create session privs. This schema can select from user_users successfully. Other users don't have this issue in the same db. Any ideas on what could be going on? Thanks, ht
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The lightning:dualListbox allows you to select one or more options from a list of available option. We will see how to use lightning:dualListbox in
Untitled. C | 26 min ago SELECT 1 FROM TABLE_NAME means, "Return 1 from the table". It is pretty unremarkable on its own, so normally it will be used with WHERE and often EXISTS (as @gbn notes, this is not necessarily best practice, it is, however, common enough to be noted, even if it isn't really meaningful (that said, I will use it because others use it and it is "more obvious" immediately.
12 окт 2007 sqlplus: select 1 from dual; -- почему? / Oracle / почему в sqlplus (9) в скрипте такая строка вообще не выполняется select 1 from dual;
It has one column, DUMMY, defined to be VARCHAR2 (1), and contains one row with a value X. Selecting from the DUAL table is useful for computing a constant expression with the SELECT statement. Because DUAL has only one row, the constant is returned only once. No. dual has just one row, but you can use union all: SELECT 1 FROM DUAL UNION ALL SELECT 2 FROM DUAL UNION ALL SELECT 4542 FROM DUAL UNION ALL SELECT 342 FROM DUAL; This is just one way to generate a table "on-the-fly" in Oracle. 2020-02-26 Your output will be an error.
If you have transferred your code from Oracle and you do not want to remove DUAL yet, you can create a DUAL table yourself in the SQL Server and use it. Here is a quick script to do the said procedure. CREATE DUAL is in the schema of the user SYS but is accessible by the name DUAL to all users. It has one column, DUMMY, defined to be VARCHAR2(1), and contains one row with a value X. Selecting from the DUAL table is useful for computing a constant expression with the SELECT statement. Because DUAL has only one row, the constant is returned only once No. dual has just one row, but you can use union all: SELECT 1 FROM DUAL UNION ALL SELECT 2 FROM DUAL UNION ALL SELECT 4542 FROM DUAL UNION ALL SELECT 342 FROM DUAL; This is just one way to generate a table "on-the-fly" in Oracle. Your output will be an error.