For details, see COMMIT | END. Setting a Savepoint GaussDB(DWS) creates a new savepoint in the current transaction. For details, see SAVEPOINT. Rollback GaussDB(DWS) rolls back the current transaction to the last committed state. For details, see ROLLBACK.Parent topic: TCL Syntax ...
Learn the basic syntax of TCL programming language. Understand commands, variables, and control structures effectively.
SQL, which stands forStructured Query Language, is a powerful language used for managing and manipulating relational databases. In this comprehensive guide, we will delve into SQL commands, their types, syntax, and practical examples to empower you with the knowledge to interact with databases effect...
The command syntax for SAVEPOINT isSAVEPOINT savepoint_name; Advantages of TCL It is used in SQL (Structured Query Language), which is very interactive, portable, and works in multiple programs of PC, servers, and laptops. Users can easily access, edit, and save changes to the database. ...
Following is savepoint command's syntax,SAVEPOINT savepoint_name;In short, using this command we can name the different states of our data in any table and then rollback to that state using the ROLLBACK command whenever required.Using Savepoint and Rollback...
DELETE Command:In SQL, the DELETE statement is used to delete records from a table. Depending on the condition we set in the WHERE clause, we can delete a single record or numerous records. Syntax:DELETE FROM table_name [WHERE condition]; ...
CREATE Command in SQL SQL Create the database or its object (ie table, index, view, function, etc.). Syntax CREATE DATABASE databasename Example CREATE DATABASE Student_data; SQL Copy Syntax CREATE TABLE table_name ( column1 datatype, column2 datatype, column3 datatype, ... ); Examp...
0 - This is a modal window. No compatible source was found for this media. lsort listname An example for sorting a list is given below − #!/usr/bin/tclshsetvar{orange blue red green}setvar[lsort$var]puts$var When the above code is executed, it produces the following result − ...
Syntax: DELETE FROM table_name WHERE condition; Example:The following SQL query will delete all the rows from the tableEmployeeswherenameis equal to"Chaitanya". DELETE FROM EMPLOYEES WHERE name="Chaitanya"; 3. DCL (Data Control Language) ...
The most useful dbcmd method is "eval". The eval method is used to execute SQL on the database. The syntax of the eval method looks like this:dbcmd eval sql ?array-name? ?script? The job of the eval method is to execute the SQL statement or statements given in the second argument...