Oracle variable in select statement
[DOC File]Oracle DBA Questions Database and SQL Multiple choice ...
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People usually get similar questions in the regular oracle placement papers. Check out the answers given. 23. The system variable that records the select statement that SQL * FORMS most recently used to populate a block is a SYSTEM.LAST_RECORD b SYSTEM.CURSOR_RECORD c SYSTEM.CURSOR_FIELD d SYSTEM.LAST_QUERY Ans: D. 24.
[DOC File]College of Computing & Informatics
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Sometimes we might want to print the value of a PL/SQL local variable. A ``quick-and-dirty'' way is to store it as the sole tuple of some relation and after the PL/SQL statement print the relation with a SELECT statement. A more cooth way is to define a bind variable, which is the only kind that may be printed with a print command.
[DOC File]Oracle Server Architecture
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Oracle performs all the processing to execute the select statement. At this point the server process will retrieve the data from the disk into the buffer cache. Once the statement has been executed, all data returned from Oracle is stored in a Cursor. The data is then placed in bind variables, row by row and returned to the user process.
[DOC File]Parameters can be passed between forms using:
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Parameters can also be used to pass parameter to other Oracle products such as Oracle REPORTS . ... You must assign the ID to a variable that you declared as type PARAMLIST (an Oracle Forms data type). ... this is the SELECT statement sent to the database: SELECT DECODE(dname, 'NONE', NULL, 'A') FROM dept .
[DOC File]Advanced PL/SQL and Oracle ETL
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Most PL/SQL code will first execute a select statement for the row of interest, binding the value to a local variable that will then be used on the subsequent insert statement. A unique indexed table look-up is relatively quick but if an application is being driven hard, the cost can be more than one would expect.
[DOC File]Substitution Variables
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If an ACCEPT statement is used for a variable, the value of that variable, once entered, is remembered during the session. You might not want to use the ACCEPT statement for a variable to be used later in more than one INSERT statement.The general syntax is. ACCEPT variablename PROMPT 'prompt message' For an example, see Fig. 5 2.
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