Search results
Our SQL tutorial will teach you how to use SQL in: MySQL, SQL Server, MS Access, Oracle, Sybase, Informix, Postgres, and other database systems. Start learning SQL now » Examples in Each Chapter
19 sie 2013 · Here is the code: ALTER FUNCTION [dbo].[fnTally] (@SchoolId nvarchar(50)) RETURNS int. AS . BEGIN . DECLARE @Final nvarchar. IF EXISTS ( SELECT . question, . yes_ans, . no_ans, . na_ans, . blank_ans . FROM dbo.qrc_maintally . WHERE school_id = @SchoolId . ) IF yes_ans > no_ans AND yes_ans > na_ans . BEGIN. SET @Final = 'Yes' END.
12 wrz 2022 · Learn how to build conditional logic when writing SQL code using IF, BEGIN, END, ELSE, and ELSEIF logic.
24 maj 2021 · The IF…ELSE structure will execute a certain block of code if a specified condition is TRUE, and a different block of code if that condition is FALSE. Here is the basic layout and syntax of the IF…ELSE structure: IF(<condition is true>) BEGIN. <execute some code>.
1 cze 2021 · Fetch all names that start with any letter followed by 'atherine': SELECT name FROM names WHERE name LIKE '_atherine'; Fetch all names that end with 'a': SELECT name FROM names WHERE name LIKE '%a'; USEFUL FUNCTIONS. Get the count of characters in a string: SELECT LENGTH('LearnSQL.com');-- result: 12 Convert all letters to lowercase: SELECT ...
2 wrz 2024 · SQL Cheat Sheet PDF. Create a Database in SQL. Explore this section to get hands on all the cheat sheet that help you in order to create a database in SQL. 1. CREATE DATABASE: Create a New Database. CREATE DATABASE company; This command creates a new database named "company." 2. USE: Select a Specific Database to Work With. USE company;
The IF...ELSE statement is a control-flow statement that allows you to execute or skip a statement block based on a specified condition. The IF statement. The following illustrates the syntax of the IF statement: IF boolean_expression . BEGIN . { statement_block } END Code language: SQL (Structured Query Language) (sql)
