PHP Blog
-
5 min readYou can update multiple rows in Oracle by using a single SQL update statement with the help of a WHERE clause. Here's how you can do it:Start by connecting to your Oracle database using a tool like SQL Developer or SQL*Plus. Write a SQL update statement that includes the table name and the column(s) you want to update. For example: UPDATE table_name SET column1 = value1, column2 = value2 Add a WHERE clause to specify the condition for updating multiple rows.
-
6 min readTo connect CodeIgniter with Oracle in XAMPP, follow these steps without list items:Install XAMPP: Download and install XAMPP, which includes Apache and PHP. You can find the installation packages on the official XAMPP website according to your operating system. Download CodeIgniter: Go to the CodeIgniter website and download the latest stable version of CodeIgniter. Extract the downloaded zip file to a folder.
-
7 min readTo store dashboard definitions in an Oracle database, you can follow the steps below:Decide on the structure: Determine how you want to store the dashboard definitions in the database. You can create a new table specifically for dashboard definitions or use an existing table that makes sense for your application. Define the table structure: If you choose to create a new table, define the necessary columns to store the relevant information for a dashboard.
-
7 min readTo completely uninstall Oracle 11G, you can follow these steps:Backup your database: Before uninstalling Oracle 11G, it's crucial to create a backup of your existing database. This backup will help you restore the data if anything goes wrong during the uninstallation process. Stop all Oracle services: Open the Services window (type "services.msc" in the Run command) and stop all Oracle-related services, including listener, database instance, and any other associated services.
-
8 min readTo validate an integer datatype in an Oracle procedure, you can follow these steps:Declare a variable of type INTEGER in your procedure to store the validated integer value. For example, myInteger INTEGER; Use the TO_NUMBER function to convert the input parameter or variable into a number. If the conversion fails, it will raise an exception that you can catch and handle. For example, myInteger := TO_NUMBER(inputParameter); Enclose the conversion statement within a BEGIN...EXCEPTION...
-
9 min readTo select multiple values from a table in Oracle, you can use the following approach:Start by writing a standard SELECT statement to retrieve data from the table.Specify the columns you want to retrieve using the SELECT clause. You can either provide specific column names or use "*" to select all columns.Use the FROM clause to specify the table from which you want to retrieve data.If necessary, you can add a WHERE clause to filter the data based on specific conditions.
-
8 min readTo set a unique key on two columns in MySQL and Oracle, you can use the following methods:MySQL:Start by creating a table using the CREATE TABLE statement.Define the columns for which you want to set a unique key. For example: CREATE TABLE table_name ( column1 datatype, column2 datatype, ... UNIQUE KEY (column1, column2) ); The UNIQUE KEY constraint is used to ensure that the combination of values in the specified columns is unique. In this case, it is applied to both column1 and column2.
-
3 min readTo create a connection string for Oracle in C#, you can follow these steps:First, make sure you have the Oracle Data Provider for .NET (ODP.NET) installed on your system. You can download it from the Oracle website. Import the necessary namespaces in your C# code: using System.Data; using Oracle.ManagedDataAccess.
-
7 min readTo update a table in Oracle SQL, you can use the UPDATE statement. It allows you to modify existing records in the table with new data values. Here is the basic syntax of the UPDATE statement: UPDATE table_name SET column1 = value1, column2 = value2, ... [WHERE condition]; Here's an explanation of each component:UPDATE specifies that you want to update the table.table_name is the name of the table you want to update.
-
9 min readTo sort an IP address stored as a varchar in Oracle, you can use the following steps:Split the IP address into four separate octets (segments) using the REGEXP_SUBSTR function. This function allows you to extract specific patterns from a string. For example, if your IP address is stored in a column called "ip_address" in a table called "your_table," you can use the following query: SELECT REGEXP_SUBSTR(ip_address, '[^.
-
6 min readTo create a pivot in Oracle, you can use the PIVOT operator in your SQL query. The PIVOT operator converts rows into columns, providing a summarized view of data. Here is a general structure of a pivot query: SELECT <column1>, <column2>, ..., <pivot_column1>, <pivot_column2>, ... FROM <table> PIVOT ( <aggregation_function>(<value_column>) FOR <pivot_column> IN (<value1>, <value2>, ...