Posts (page 185)
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3 min readIn Rust, a module is a way to organize code within a file or across multiple files. Modules allow you to group related functions, structs, and other items together, making your code more organized and readable. Each Rust file can contain one or more modules, and you can nest modules within other modules to create a hierarchical structure. Modules help to manage the complexity of larger projects by breaking code into smaller, more manageable pieces.
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3 min readTo round up to a specific number in Oracle SQL, you can use the CEIL function. This function allows you to round a number up to the nearest integer or a specified number of decimal places. For example, to round up a number to the nearest whole number, you can use the CEIL function like this: CEIL(number). If you want to round up to a specific decimal place, you can specify the number of decimal places as the second argument in the CEIL function. For example, CEIL(number, decimal_places).
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5 min readIn SQL Oracle, you can compare date parts using various date functions such as EXTRACT, TO_CHAR, and TRUNC.The EXTRACT function allows you to extract a specific date part (day, month, year, etc.) from a date value. For example, you can compare the month of two date values by extracting the month using EXTRACT and then comparing the results.The TO_CHAR function converts a date value to a string in a specified format.
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5 min readTo compare dates in Oracle, you can use the comparison operators such as "=", "<>", "<", ">", "<=", or ">=". When comparing dates, it is important to ensure that the date format is standardized across your query and database. You may need to use the TO_DATE function to convert date strings to date format or use the TRUNC function to ignore the time component of the date.
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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.