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4 min readTo setup SQL adapter for Oracle database, you first need to ensure that you have the necessary permissions to access and configure the database. Next, you will need to install the Oracle client software on the machine where the SQL adapter will be running. This software allows the adapter to communicate with the Oracle database.Once the Oracle client software is installed, you can then configure the SQL adapter to connect to the Oracle database.
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7 min readThe ROLLUP function in Oracle is used to perform summary operations on groups of data. It is useful for generating subtotals and totals for various columns in a query result set.To use the ROLLUP function, you specify the columns that you want to group by in the GROUP BY clause of your SQL query. You then use the ROLLUP keyword following the list of columns to indicate that you want to perform summary operations on the specified columns.
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5 min readIn Oracle, if you want to insert a string that contains spaces into a table, you can do so by enclosing the string in single quotes. This will ensure that the entire string is treated as one value and is inserted correctly into the table.
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3 min readIn Oracle SQL, you can write a loop statement by using the LOOP and END LOOP keywords.Here is an example of a simple loop statement in Oracle SQL: DECLARE counter NUMBER := 1; BEGIN LOOP EXIT WHEN counter > 10; DBMS_OUTPUT.PUT_LINE('Counter is: ' || counter); counter := counter + 1; END LOOP; END; In this example, the loop will continue to iterate until the counter reaches a value greater than 10. The DBMS_OUTPUT.
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3 min readTo get age in years, months, and days using Oracle, you can use a combination of functions to calculate the difference between the birthdate and the current date. You can use the MONTHS_BETWEEN function to get the difference in months, and then use the TRUNC function to get the integer value of that difference.Next, you can use the EXTRACT function to extract the year and month values from the remaining difference.
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5 min readTo convert signed numbers in Oracle SQL, you can use the ABS function to find the absolute value of a number. This function returns the positive value of a number, regardless of its original sign. For example, ABS(-10) would return 10.You can also use the CASE statement to convert signed numbers. By using a CASE statement, you can check the sign of a number and then apply an appropriate conversion logic based on the sign.
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7 min readIn Oracle, you can preserve trailing zeros for a number by using the TO_CHAR function with a format mask. You can specify the desired number of decimal places and whether or not to display trailing zeros. For example, if you want to display a number with 2 decimal places and preserve trailing zeros, you can use the format mask '990.00'. This will ensure that the number is displayed with two decimal places and any trailing zeros are preserved.
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6 min readTo give column values as XML element names in Oracle, you can use the XMLFOREST function in SQL. This function allows you to specify the column value and the element name that you want to assign to it in the resulting XML.
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3 min readIn Oracle, you can combine local variables by using the CONCAT function. The CONCAT function allows you to concatenate two or more strings together.For example, if you have two local variables, var1 and var2, you can combine them like this:var_final := var1 || var2;This will combine the values of var1 and var2 and store the result in var_final.You can also use CONCAT function to achieve the same result:var_final := CONCAT(var1, var2);This function works in a similar way to using the || operator.
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5 min readConverting a procedure from SQL Server into Oracle can be a straightforward process if you follow these steps:Review the SQL Server procedure code and note any SQL Server specific syntax or features that need to be modified for compatibility with Oracle.Create a new procedure in Oracle using the PL/SQL language.Map the SQL Server data types to their Oracle equivalents. Make sure to account for any differences in data type definitions, such as length constraints or precision/scale settings.
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5 min readIn Oracle, the SUBSTR function is used to extract a substring from a string.