oas

How to avoid this very heavy query that slows down the application?

由 与世无争的帅哥 提交于 2020-01-21 05:09:23
问题 We have a web application running in a production enviroment and at some point the client complained about how slow the application got. When we checked what was going on with the application and the database we discover this "precious" query that was being executed by several users at the same time (thus inflicting an extremely high load on the database server): SELECT NULL AS table_cat, o.owner AS table_schem, o.object_name AS table_name, o.object_type AS table_type, NULL AS remarks FROM

Show generated SQL in toplink in eclipse

由 强颜欢笑 提交于 2020-01-15 06:56:06
问题 I am using EclipseLink libraries in eclipse (at dev time) and deploy on TopLink, I need to show the generated sql statement. I am using the following persistence.xml: <?xml version="1.0" encoding="UTF-8"?> <persistence version="1.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"> <persistence-unit name="myPUnit"

Inject Css into iframe from third party

由 折月煮酒 提交于 2019-12-22 08:23:20
问题 Can we inject bunch of CSS files into an iframe from a third party like OAS which is hosting ads? If it is possible an example will be greatly appreciated. 回答1: By using jQuery selectors, you should be able to do that. However there should not be any restriction on iframe contents (i.e it should be from same domain) For HTML update: $('iframe').contents().find("body") will get you body object $('iframe').contents().find("head") will get you header object. You can add style here Please refer

JDBC: Oracle Application Server and “The Network Adapter could not establish the connection” error

由 荒凉一梦 提交于 2019-12-10 11:23:28
问题 I am getting the error: "The Network Adapter could not establish the connection" from a web application deployed in Oracle Application Server 10g. The database is local, so there shouldn't be any connection issues. First test: I can connect to the DB no problem from SQL plus, run queries, etc. Second test: I can connect to the database no problem from a locally installed JDeveloper on the server, and run queries, etc. no problem. This works with the short JDBC scring, and the long one (shown

JDBC: Oracle Application Server and “The Network Adapter could not establish the connection” error

由 旧城冷巷雨未停 提交于 2019-12-06 11:01:49
I am getting the error: "The Network Adapter could not establish the connection" from a web application deployed in Oracle Application Server 10g. The database is local, so there shouldn't be any connection issues. First test: I can connect to the DB no problem from SQL plus, run queries, etc. Second test: I can connect to the database no problem from a locally installed JDeveloper on the server, and run queries, etc. no problem. This works with the short JDBC scring, and the long one (shown below). jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=localhost)(PORT=1521)
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