The IF ELSE statement controls the flow of execution in SQL Server. It can be used in stored-procedures, functions, triggers, etc. to execute the SQL statements based on the specified conditions. Syntax: Copy IF Boolean_expression { sql_statement | statement_block } [ ELSE { sql_statement...
In this nested IF...ELSE statement example, we will print 'TechOnTheNet.com' if the variable @site_value is less than 25. Otherwise, the first ELSE condition will be executed. Within this ELSE condition, there is a nested IF...ELSE statement that will print 'CheckYourMath.com' if the...
In the following SQL IF Statement, it evaluates the expression, and if the condition is true, then it executes the statement mentioned in IF block otherwise statements within ELSE clause is executed. 在下面SQL IF语句中,它计算表达式,如果条件为true,则执行IF块中提到的语句,否则将执行ELSE子句中的语...
Therefore, optionally you can use the ELSE condition within the IF…ELSE statement. You should not use an ELSE IF condition in the IF ELSE statement. But, you can use nested (multiple) IF ELSE statements to obtain your results. Let’s have a quick example to learn the IF ELSE statements...
3) PL/pgSQL if-then-elsif Statement Unlike the if and if...then...else statements that evaluate only one condition, the if then elsif statement allows you to evaluate multiple conditions. and execute one or more statements when a condition is true. Here’s the syntax of the if...then...
2) If the first two characters ofcharacter_expressionhave the same number in theSOUNDEXcode, both characters are included. Else, if a set of side-by-side consonants have the same number in theSOUNDEXcode, all of them are excluded except the first.SOUNDEXfunction imple...
create tableifnot existsdwd_category_by_day(`i_category`string,`cate_sales`double,`cayehory_day_order_cnt`bigint)partitionedby(`year`bigint,`day`bigint)TBLPROPERTIES('sink.partition-commit.policy.kind'='metastore,success-file');--创建源表settable.sql-dialect=default;create tableifnot existss...
Else, if a set of side-by-side consonants have the same number in the SOUNDEX code, all of them are excluded except the first. SOUNDEX function implements the following rules:1) If upper-case H or upper-case W separate two consonants that have the same number in the SOUNDEX code, the...
If it is not possible to identify the SQL (for example, the SQL is generated dynamically), then useSQL_TRACEto generate a trace file that contains the SQL executed, then useTKPROFto generate an output file. The SQL statements in theTKPROFoutput file can be ordered by various parameters, su...
ELSE PRINT'Failed, Try again '; Example 3: Multiple IF Statement with a variable in a Boolean expression We can specify multiple SQL IF Statements and execute the statement accordingly. Look at the following example If a student gets more than 90% marks, it should display a message from the...