instr reverse

Index | performance ORA FAQ Performance Tuning Series-- The Oracle (tm) Users ' co-operative FAQ Why would a reverse index to useful when the leading column of the "index is" generated from a sequence? When the first column of the index is generated

Powerdesigner can write the name value of PDM to the corresponding fields in the pbcatcol table of the database, but now I use the resever engineer function of PD to reverse the database table to PDM, how can we reverse the name value generated in

Yesterday, I encountered a very simple problem in the project. I need to extract the file name from a path address saved in the SQL Server database, but SQL Server has no ready-made method, finally, find this method on the Internet. The principle is

SQL statement Copy codeThe Code is as follows: reverse (substring (reverse (Path), 1, charindex ('/', reverse (Path)-1 )) How can I retrieve the right character of the last special character in a string, for example, 10*20*300? How can I get 300?

SQL statement Copy Code code as follows: Reverse (substring reverse (path), 1,charindex ('/', reverse (path))-1) How SQL takes out the character to the right of the last special character in a string, for example: 10*20*300, how do

Yesterday at the customer did an Rman machine recovery, the production library to get a copy of the test library, the total library is about 80G, a total of 2 hours, the customer's environment is Windows 11.2.0.3, this morning in Linux under another

Yesterday at the customer did an Rman recovery, the production library to get a copy to the test library, the total library of about 80G, a total of 2 hours, when the customer's environment is Windows 11.2.0.3, this morning under Linux re-test a bit,

In the words of the work of the algorithm is really how??????Although the work is not used, but you have to change work, can't resist the written interview to ask you some of this stuff.Moreover, thinking more can help the mind to be active. The

Compilation recently tried several Java obfuscation (Java obfuscator), feel not a completely satisfactory, so I want to simply write one. After a few pages of Java Virtual Machine specifications, the whim of other obfuscation is compiled in the byte

In general, if you want to know the stock market, you must log on to the professional stock website and enter the company code to see the specific stock price. In fact, with the XMLHTTP Protocol, each of us can provide the stock market details query