In Oracle/PLSQL, theNVLfunction lets you substitute a value when a null value is encountered. The syntax for theNVLfunction is: NVL( string1, replace_with ) string1is the string to test for a null value. replace
The only way that I know of to get a SUBSTR from a LONG variable is towrite a PL/SQL procedurethat takes a ROWID, then converts that to a 32k variable, and returns 4000 characters to SQL, which can then be used for the SUBSTR function. This is described inmore detail here. SUBSTR ...
The LPAD function can be used in the following versions of Oracle/PLSQL: Oracle 12c, Oracle 11g, Oracle 10g, Oracle 9i, Oracle 8i Example Let's look at some Oracle LPAD function examples and explore how to use the LPAD function in Oracle/PLSQL. For example: table can use dual example....
Whenbehavior_compat_optionsis set to'plpgsql_dependency', if function A is called in the function and function B is contained in the input and output parameters of function A, function B will not establish a dependency. For example,functionA(functionB()).gs_dependenciesonly creates dependency ...
Withdollar quoting,you use a pair of dollar signs ($$) to signify the start and the end of the statement to run, as shown in the following example. $$my statement$$ Optionally, between the dollar signs in each pair, you can specify a string to help identify the statement. The string...
In this tutorial, you will learn how to use the Oracle NTH_VALUE() function to get Nth value in a set of values.
The very first time you execute the body of a result-cached PL/SQL function with a set of parameter values, the function will execute. The function will re-execute under the following circumstances: When the cached result for the parameter values is invalid because an object specified in the...
For example, the following function calls the f_sql_greater function in the SELECT clause. create function f_sql_commission (float, float ) returns float stable as $$ select f_sql_greater ($1, $2) $$ language sql; UDF security and privileges To create a UDF, you must have permission ...
Affects PMD Version: This error was testing in the following versions: 7.0.0 7.0.0.rc1 6.55.0 6.54.0 Description: Trying to analyze pl/sql code with XMLQUERY function in SELECT, PMD raises an exception error that indicates "Error while p...
For example, in your database, you have a surname of “Smith”. However, you also have a surname of “Smythe”. How do you find all records where the surname sounds like Smith, which would include Smith, Smythe, and any other variations?