在SQL语句中使用IF或CASE with multiple条件的作用是根据不同的条件执行不同的操作或返回不同的结果。这些条件可以是基于列的值、函数的结果、逻辑表达式等。 使用IF语句可以根据条件执行不同的操作。IF语句的基本语法如下: 代码语言:txt 复制 IF condition THEN statement1; ELSE statem
在sql语句中使用if或case和multiple请注意，sql通常不考虑排序，因此结果可以按任何顺序返回，甚至可以使用...
to 3rd normal form. There shouldn't be anything to do with that. the column in this table have comma separated values and I need to return a specif value for those comma separated values. This was working fine, but we are seeing slowness and trying get rid of these CASE statements. ...
SQL> CREATE TYPE INTEGER_PAIR_OT AS OBJECT 2 ( i1 INTEGER 3 , i2 INTEGER ) 4 / Type created. SQL> SELECT v.expr.i1 2 , v.expr.i2 3 FROM ( SELECT CASE 4 WHEN 'x' = 'y' THEN INTEGER_PAIR_OT(0,1) 5 ELSE INTEGER_PAIR_OT(2,3) 6 END AS expr 7 FROM dual ) v; EXP...
Iterative Case Statements Iterative Control Statements Indentation Control Statements Indentation Case StatementsAnswer: B) Iterative Control StatementsExplanation:PL/SQL Loops are also known as Iterative Control Statements.Discuss this Question 42. What is the syntax of PL/SQL Loop?
case 1: System.out.println("One"); break; case 2: case 3: System.out.println("Two or Three"); break; default: System.out.println("The number is outside range"); } Java's 'switch' statement allows for control to flow sequentially through consecutive subsequent case statements, as shown...
Can I use aggregate function within CASE? Can I use if statement in a table valued function? Can I use LEN or DATALENGTH in a WHERE clause? Can I use OUTER JOIN on 2 columns at the same time? Can row_number() work in UNION STATEMENTS ? Can someone explain just exactly why xp_cmdsh...
Multiple If statements to set Row Visibilty in a SSRS report. Multiple IIF in an Expression in SSRS Multiple parameters with CASE statement in the WHERE clause - I appreciate any help. multiple result sets from stored procedure bind to tabs in ssrs report Multiple Select Parameter Only Selecting...
SQL - Using Single-Row Functions SQL - Conditional Expressions SQL - Using the Group Functions SQL - Get Data from Multiple Tables SQL - Subqueries to Solve Queries SQL - Using the Set Operators SQL - Manipulating Data SQL - Using DDL Statements SQL - Creating Other Schema Objects SQL - The...
I'm attempting to run two SELECT statements in one Query with arguments but I'm getting the error pq: cannot insert multiple commands into a prepared statement. A very contrived example of what I'm trying to do is this: stmt := ` SELECT ...