Is there any difference between "!=" and "<>" in Oracle Sql?
May 18, 2012 · @Dems: in Oracle, boolean is not a first-class type in SQL (which is different from PL/SQL). I. e. you can't SELECT 1 = 1 FROM dual like in some other systems. So booleans have their own set of operators valid only in logical contexts (WHERE or HAVING or similar clauses). NOT is the only boolean negation operator in Oracle's SQL (AFAIK). –
What does the (+) operator mean in a where-clause of PL/SQL?
Jan 8, 2011 · I have a SQL query something like:- Select Table1.attr1, Table1.attr2, Table2.attr3, Table2.attr4 From Tab1 Tabel1, Tab2 Tabel2 Where Tabel1.Attr = Tabel2.Attr (+) So what does the above mean?
What is the difference between SQL, PL-SQL and T-SQL?
Jan 26, 2015 · 2. SQL is a data oriented language for selecting and manipulating sets of data. PL/SQL is a procedural language to create applications. – user610835. Feb 10, 2011 at 4:55. 1. SQL is structured query language PL/SQL is a procedural language extended to sql it is developed by oracle T-SQL is developed by microsoft.
What is the difference between := and = in Oracle PL/SQL
Aug 21, 2014 · General declaration syntax in PL/SQL uses ':='.Look below. variable_name datatype [NOT NULL := value ]; where, variable_name is the name of the variable. datatype is a valid PL/SQL datatype. NOT NULL is an optional specification on the variable. value or DEFAULT value is also an optional specification, where you can initialize a variable.
oracle database - pl sql %NOTFOUND - Stack Overflow
Sep 23, 2015 · To catch the NO_DATA_FOUND exception rewrite your code as follows by adding exception section:. DECLARE VAR_SUPP_NM VARCHAR2(100); VAR_SUPP_ID NUMBER := 1; WHILE_VAR CHAR := 'Y'; BEGIN SELECT SUPP_NM INTO VAR_SUPP_NM FROM TEST.SUPPLIER WHERE SUPP_ID = VAR_SUPP_ID; DBMS_OUTPUT.PUT_LINE('DATA …
sql - Oracle Not Equals Operator - Stack Overflow
Nov 3, 2010 · But there are actually FOUR types of inequality operators: !=, ^=, <>, and ¬=. See this page in the Oracle SQL reference. On the website the fourth operator shows up as = but in the PDF it shows as ¬=. According to the documentation some …
plsql - what's the difference between ::= and - Stack Overflow
Aug 26, 2014 · 3. The only place (that I'm aware of) where ::= is used is in the syntactical description of PL/SQL (or any other language, for that matter) using Backus-Naur Form (BNF). The ::= symbol is a part of the BNF descriptive language itself, not a part of the language being described. There are many tutorials for BNF -- have fun!
what is the difference between the & and : in PL/SQL in oracle?
Apr 16, 2012 · In SQL Plus, & is used to define a substitution variable, which is replaced with specified replacement text by SQL Plus before the code is sent to the server to be processed. The correct syntax for a SQL Plus substitution variable is &name. i.e. is begins with a & and ends with a ., but in most situations the . is optional.
AND condition IF-THEN-ELSE statement in PL/SQL
May 6, 2015 · bool1 := TRUE; bool2 := FALSE; IF bool1 AND bool2. THEN. DBMS_OUTPUT.put_line ('Both true'); ELSE. DBMS_OUTPUT.put_line ('Not both true'); END IF; Be aware though that in oracle booleans only exist in PL/SQL, not in SQL, so you can't have a column of the datatype boolean in the DB.
Oracle PL/SQL - How to create a simple array variable?
Aug 10, 2011 · Declare your public array type to be use in script. type t_array is varray(10) of varchar2(60); This is the function you need to call - simply finds the values in the string passed in using a comma delimiter. function ConvertToArray(p_list IN VARCHAR2) RETURN t_array.