SELECTUPPER('This is a string')FROMwhat_table;Code language:SQL (Structured Query Language)(sql) In this case, you might think about creating a table and use it in theFROMclause for just using theUPPER()function. Fortunately, Oracle provides you with theDUALtable which is a special table ...
1.What is the dual table, what is its purpose. dual is just a convienence table. You don't need to use it, you can use anything you want. The advantage to dual is the optimizer understands dual is a special one row, one column table -- when you use it in queries, it uses thi...
things basedonthat.8) dual = magic. dualisa one row table however having morethen1orlessthenoneisdangerous. You are updating the data dictionary. You should naturally expect very bad thingstohappen. 简单总结,意思如下: DUAL is a convienence table The column, its name, its datatype and even...
“Oracle's AI agents automate drug design, image and genomic analysis for cancer diagnostics, audio updates to electronic health records for patient care, satellite image analysis to predict and improve agricultural output, fraud and money laundering detection, dual factor biometric computer logins, and...
The DUAL table is a dummy table in Oracle databases. It’s used for selecting data from system functions and calculations when you don’t need any data from the database. An example of using the DUAL table would be: SELECTSYSDATEFROMDUAL; ...
“Oracle's AI agents automate drug design, image and genomic analysis for cancer diagnostics, audio updates to electronic health records for patient care, satellite image analysis to predict and improve agricultural output, fraud and money laundering detection, dual factor biometric computer logins, and...
SELECT DBMS_SQLTUNE.report_tuning_task('5dkrnbx1z8gcb_tuning_task_1') AS recommendations FROM dual; SET PAGESIZE 24 2. Go through the profile recommendation part of the report: DBMS_SQLTUNE.report_tuning_taskwill generate the completed output of the advisory. If you go through the profile...
What is Oracle doing to support Arm server-side development? Arm,Ampere, and leading ISVs such as GitLab and Jenkins are partnering with Oracle to make Arm server-side development easy and cost effective. Oracle Cloud Infrastructure (OCI), in collaboration with partners, provides an easy path ...
The most common strong authentication policy is dual-factor authentication. When logging in to the system, a user needs to provide not only the user name and password, but also the items bound to the user name and password (for example, USB keys are widely used in online banking), or ...
FROM dual; BEGIN IF ref_in IS NULL THEN ref_out := 'X'; RETURN; END IF; FOR I IN 1..LENGTH(l_search_string) LOOP OPEN cur_get_next_alpha(I); FETCH cur_get_next_alpha INTO l_alpha_char; CLOSE cur_get_next_alpha; FOR J IN 1..LENGTH(ref_in) LOOP ...