NULL or BLANK fields (ORACLE) - Stack Overflow
Feb 6, 2012 ... COUNT(expresion) returns the count of of rows where expresion is not null. So SELECT COUNT (COL_NAME) FROM TABLE WHERE COL_NAME IS NULL will ...
HOW CAN I COMPARE NULL VALUES - Ask TOM
Jul 30, 2020 ... comparing null values · NULLIF · Sort of a work around.... · NULLIF = CONFUSIONTHEN · HOW IS THIS · PL/SQL · Nulls · When is CHR(0) used in v$session.
SQL Injection Cheat Sheet | Invicti
SELECT CHR(75)||CHR(76)||CHR(77) (O); SELECT (CHaR ... SELECT header, txt FROM news UNION ALL SELECT name, pass FROM members ... UNION SELECT NULL,NULL,NULL,NULL ...
c# - web-api POST body object always null - Stack Overflow
Mar 30, 2014 ... FromBody is a strange attribute in that the input POST values need to be in a specific format for the parameter to be non-null, ...
Oracle empty string ('') is the same as NULL – SQLServerCentral ...
(SELECT NULL AS THEVAL FROM DUAL UNION ALL ... :blink: Really? SQL> select version from v$instance; ... SQL> select count(*) from chr where x is ...
Performance-Efficiency-Scripts-SAP-ORA/2_parameter_check_12 ...
select null ic, null name, null recommendation, null flags, null ... v$transportable_platform*/ decode(instr('YN',upper ... ]###' val from dual ) union all ( select ...
Spark SQL, Built-in Functions
any_value(expr[, isIgnoreNull]) - Returns some value of expr for a group of rows. If isIgnoreNull is true, returns only non-null values. Examples: > SELECT ...
Operators, Functions, Expressions, Conditions
SELECT part, partnum, to_date(null) date_in FROM orders_list1 UNION SELECT ... SELECT part FROM orders_list1 UNION ALL SELECT ... SELECT CHR(67)||CHR(65)||CHR(84) " ...
String functions | BigQuery | Google Cloud
The following query returns NULL because a NULL existed in a STRUCT that did not result in a match. SELECT CONTAINS_SUBSTR((23, ...
Extract SQL Command Feature Request · Issue #1222 ...
Apr 11, 2015 ... ... v$database [*] select u.name, o.name, t. ... users WHERE id=1 UNION ALL SELECT NULL,CHR(113)||CHR ... CHR(113),NULL FROM DUAL-- [*] SELECT * FROM ...