Posts (page 6)
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5 min readTo drop multiple functions in Oracle, you can use the DROP FUNCTION statement followed by the names of the functions you want to delete. Each function name should be separated by a comma. Make sure you have the necessary privileges to drop the functions. The syntax for dropping multiple functions in Oracle is as follows: DROP FUNCTION function_name1, function_name2, function_name3; After executing the drop function statement, the specified functions will be removed from the database.
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4 min readTo rename multiple stored procedures in Oracle, you can use the RENAME statement followed by the original name of the procedure, the keyword TO, and the new name you want to assign to it. You can repeat this process for each stored procedure you want to rename. Alternatively, you can use a script or program to automate the renaming process for multiple procedures.
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4 min readIn Oracle, the CASE WHEN syntax allows you to perform conditional logic within your SQL queries. You can use this syntax to create if-then-else logic and handle different scenarios based on certain conditions.The basic structure of the CASE WHEN syntax is as follows: CASE WHEN condition1 THEN result1 WHEN condition2 THEN result2 ... ELSE default_result ENDYou can have multiple WHEN conditions within a single CASE statement, each with its own result if the condition is true.
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3 min readTo generate a random character in Oracle, you can use the DBMS_RANDOM package. The function DBMS_RANDOM.STRING can be used to generate a random string of characters of a specified length. For example, you can use the following SQL query to generate a random character:SELECT SUBSTR(DBMS_RANDOM.STRING('P', 1), 1, 1) AS random_char FROM dual;This query will return a single random character as the result. You can adjust the length parameter in the DBMS_RANDOM.
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5 min readIn Oracle, you can display row data as columns by using the PIVOT clause in your SQL query. This allows you to transform row data into a more readable column format. You can pivot the data based on a specific column, using aggregation functions like SUM, COUNT, AVG, etc.
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3 min readTo get the previous working day from an Oracle database, you can use the TRUNC function to remove the time portion of a date, and then use the CASE statement to check if the previous day is a Saturday or Sunday. If it is, you can return the previous business day by subtracting an additional day. Finally, you can use the result in your query to retrieve data related to the previous working day from the database.
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9 min readTo automate image storing on Oracle database, you can use a combination of tools and technologies such as Oracle PL/SQL, SQL scripts, and possibly a programming language like Java or Python.One approach is to create a script or program that will connect to the Oracle database, read the image files from a given directory or source, convert them into binary format, and then insert them into a specific table in the database.
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4 min readTo parse CLOB data in Oracle, you can use the DBMS_LOB package, which provides procedures and functions to handle large objects like CLOBs. You can use the DBMS_LOB package to extract and manipulate the content of CLOB columns in Oracle tables.One common method to parse CLOB data is to use the DBMS_LOB.SUBSTR function, which allows you to extract a substring of the CLOB data based on a specified offset and length.
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6 min readTo replace only 0 values in Oracle, you can use the UPDATE statement with a CASE expression. Here's an example query:UPDATE table_name SET column_name = CASE WHEN column_name = 0 THEN new_value ELSE column_name END WHERE column_name = 0;In this query, table_name is the name of the table you want to update, column_name is the name of the column containing the values you want to replace, and new_value is the value you want to replace the 0 values with.
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3 min readTo calculate the sum of multiple columns in Oracle, you can use the SQL SUM() function along with the + operator to add the values of each column.
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7 min readTo connect Oracle to Laravel, you will first need to install the required Oracle drivers for PHP. You can do this by downloading the Oracle Instant Client from the Oracle website and then installing the necessary PHP extension for connecting to Oracle databases.Once you have installed the Oracle drivers, you can configure Laravel to connect to your Oracle database by updating the database configuration file (config/database.php).
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7 min readTo execute multiple queries in Oracle, you can use a PL/SQL block or a script to combine multiple SQL statements. You can use the BEGIN and END keywords to define a block of code, and use semicolons to separate each SQL statement within the block. You can also use anonymous blocks to execute multiple queries in a single transaction. Another way is to create a stored procedure or function that contains the multiple queries, and then call the procedure or function to execute the queries.