Difference between revisions of "FUNCTIONS"

From SQLZOO
Jump to: navigation, search
m (Reverted edits by 217.122.199.176 (talk) to last revision by Peter)
 
(4 intermediate revisions by 4 users not shown)
Line 1: Line 1:
 
<h3>SQL Functions</h3>
 
<h3>SQL Functions</h3>
Standard SQL functions together with some common non-standard function. MS SQL, Oracle, MySQL and PostgreSQL provide support or have alternatives. Where possible alternatives are given.
+
Standard SQL functions and some common non-standard function. MS SQL, Oracle, MySQL and PostgreSQL provide support or have alternatives. Where possible alternatives are given.
 
<table>
 
<table>
 
<tr><th></th><th></th><th></th><th></th></tr>
 
<tr><th></th><th></th><th></th><th></th></tr>
 
<tr><td align='left'>[[ABS]]</td><td align='left'>[[CURRENT_TIMESTAMP]]</td><td align='left'>[[LENGTH]]</td><td align='left'>[[+ INTERVAL]]</td><td align='left'>[[SUBSTRING(ansi)]]</td></tr>
 
<tr><td align='left'>[[ABS]]</td><td align='left'>[[CURRENT_TIMESTAMP]]</td><td align='left'>[[LENGTH]]</td><td align='left'>[[+ INTERVAL]]</td><td align='left'>[[SUBSTRING(ansi)]]</td></tr>
 
<tr><td align='left'>[[AVG]]</td><td align='left'>[[DATEPART]]</td><td align='left'>[[MAX]]</td><td align='left'>[[+ (string)]]</td><td align='left'>[[SUBSTRING]]</td></tr>
 
<tr><td align='left'>[[AVG]]</td><td align='left'>[[DATEPART]]</td><td align='left'>[[MAX]]</td><td align='left'>[[+ (string)]]</td><td align='left'>[[SUBSTRING]]</td></tr>
<tr><td align='left'>[[More strings]]</td><td align='left'>[[DAY]]</td><td align='left'>[[MIN]]</td><td align='left'>[[POSITION]]</td><td align='left'>[[SUM]]</td></tr>
+
<tr><td align='left'>[[Strings]]</td><td align='left'>[[DAY]]</td><td align='left'>[[MIN]]</td><td align='left'>[[POSITION]]</td><td align='left'>[[SUM]]</td></tr>
 
<tr><td align='left'>[[CASE]]</td><td align='left'>[[DIV]]</td><td align='left'>[[MINUTE]]</td><td align='left'>[[QUARTER]]</td><td align='left'>[[TAN]]</td></tr>
 
<tr><td align='left'>[[CASE]]</td><td align='left'>[[DIV]]</td><td align='left'>[[MINUTE]]</td><td align='left'>[[QUARTER]]</td><td align='left'>[[TAN]]</td></tr>
 
<tr><td align='left'>[[CAST]]</td><td align='left'>[[EXTRACT]]</td><td align='left'>[[MOD]]</td><td align='left'>[[RANK]]</td><td align='left'>[[TO_CHAR(dates)]]</td></tr>
 
<tr><td align='left'>[[CAST]]</td><td align='left'>[[EXTRACT]]</td><td align='left'>[[MOD]]</td><td align='left'>[[RANK]]</td><td align='left'>[[TO_CHAR(dates)]]</td></tr>
Line 14: Line 14:
 
<tr><td align='left'>[[COUNT]]</td><td align='left'>[[LEFT]]</td><td align='left'>[[% MODULO]]</td><td align='left'>[[SIN]]</td><td></td></tr>
 
<tr><td align='left'>[[COUNT]]</td><td align='left'>[[LEFT]]</td><td align='left'>[[% MODULO]]</td><td align='left'>[[SIN]]</td><td></td></tr>
 
<tr><td align='left'>[[CURRENT_DATE]]</td><td align='left'>[[LEN]]</td><td align='left'>[[+(dates)]]</td><td align='left'>[[SUBSTR]]</td><td></td></tr>
 
<tr><td align='left'>[[CURRENT_DATE]]</td><td align='left'>[[LEN]]</td><td align='left'>[[+(dates)]]</td><td align='left'>[[SUBSTR]]</td><td></td></tr>
 +
 +
{{Languages}}

Latest revision as of 22:17, 2 May 2014

SQL Functions

Standard SQL functions and some common non-standard function. MS SQL, Oracle, MySQL and PostgreSQL provide support or have alternatives. Where possible alternatives are given.

ABSCURRENT_TIMESTAMPLENGTH+ INTERVALSUBSTRING(ansi)
AVGDATEPARTMAX+ (string)SUBSTRING
StringsDAYMINPOSITIONSUM
CASEDIVMINUTEQUARTERTAN
CASTEXTRACTMODRANKTO_CHAR(dates)
CEILFLOORMONTHREPLACETRIM
COALESCEHOURNULLIFRIGHTYEAR
CONCATIFNULLNVLROUND
COSINSTRPATINDEXSECOND
COUNTLEFT% MODULOSIN
CURRENT_DATELEN+(dates)SUBSTR
Language: English  • Deutsch
Personal tools
Namespaces

Variants
Actions
Reference
Toolbox
Google AdSense