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Esercitazione MySQL

MySQL HOME Introduzione a MySQL MySQL RDBMS

MySQL SQL

MySQL SQL SELEZIONA MySQL MySQL DOVE MySQL E, O, NON MySQL ORDINA PER MySQL INSERT IN Valori NULL MySQL AGGIORNAMENTO MySQL MySQL DELETE LIMITE MySQL MySQL MIN e MAX MySQL COUNT, AVG, SOMMA MySQL MI PIACE Caratteri jolly MySQL MySQL IN MySQL TRA alias MySQL MySQL si unisce MySQL INNER JIN MySQL ha lasciato il join MySQL GIUSTO UNISCITI MySQL CROSS JIN MySQL Self Join MySQL UNION MySQL GRUPPO PER MySQL AVENDO MySQL ESISTE MySQL QUALSIASI, TUTTO SELEZIONA INSERTO MySQL CASO MySQL Funzioni null di MySQL Commenti MySQL Operatori MySQL

Database MySQL

MySQL Crea DB MySQL Drop DB MySQL Crea tabella MySQL Drop Table MySQL Alter tabella Vincoli MySQL MySQL non nullo MySQL unico Chiave primaria MySQL Chiave esterna MySQL Controllo MySQL MySQL predefinito MySQL Crea indice Incremento automatico di MySQL Date MySQL Viste MySQL

Riferimenti MySQL

Tipi di dati MySQL Funzioni MySQL
String Functions ASCII CHAR_LENGTH CHARACTER_LENGTH CONCAT CONCAT_WS FIELD FIND_IN_SET FORMAT INSERT INSTR LCASE LEFT LENGTH LOCATE LOWER LPAD LTRIM MID POSITION REPEAT REPLACE REVERSE RIGHT RPAD RTRIM SPACE STRCMP SUBSTR SUBSTRING SUBSTRING_INDEX TRIM UCASE UPPER Numeric Functions ABS ACOS ASIN ATAN ATAN2 AVG CEIL CEILING COS COT COUNT DEGREES DIV EXP FLOOR GREATEST LEAST LN LOG LOG10 LOG2 MAX MIN MOD PI POW POWER RADIANS RAND ROUND SIGN SIN SQRT SUM TAN TRUNCATE Date Functions ADDDATE ADDTIME CURDATE CURRENT_DATE CURRENT_TIME CURRENT_TIMESTAMP CURTIME DATE DATEDIFF DATE_ADD DATE_FORMAT DATE_SUB DAY DAYNAME DAYOFMONTH DAYOFWEEK DAYOFYEAR EXTRACT FROM_DAYS HOUR LAST_DAY LOCALTIME LOCALTIMESTAMP MAKEDATE MAKETIME MICROSECOND MINUTE MONTH MONTHNAME NOW PERIOD_ADD PERIOD_DIFF QUARTER SECOND SEC_TO_TIME STR_TO_DATE SUBDATE SUBTIME SYSDATE TIME TIME_FORMAT TIME_TO_SEC TIMEDIFF TIMESTAMP TO_DAYS WEEK WEEKDAY WEEKOFYEAR YEAR YEARWEEK Advanced Functions BIN BINARY CASE CAST COALESCE CONNECTION_ID CONV CONVERT CURRENT_USER DATABASE IF IFNULL ISNULL LAST_INSERT_ID NULLIF SESSION_USER SYSTEM_USER USER VERSION

Esempi MySQL

Esempi MySQL Quiz MySQL Esercizi MySQL

Operatori MySQL

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Operatori aritmetici MySQL

Operator Description Example
+ Add
- Subtract
* Multiply
/ Divide
% Modulo

Operatori bit a bit di MySQL

Operator Description
& Bitwise AND
| Bitwise OR
^ Bitwise exclusive OR

Operatori di confronto MySQL

Operator Description Example
= Equal to
> Greater than
< Less than
>= Greater than or equal to
<= Less than or equal to
<> Not equal to

Operatori composti MySQL

Operator Description
+= Add equals
-= Subtract equals
*= Multiply equals
/= Divide equals
%= Modulo equals
&= Bitwise AND equals
^-= Bitwise exclusive equals
|*= Bitwise OR equals

Operatori logici MySQL

Operator Description Example
ALL TRUE if all of the subquery values meet the condition
AND TRUE if all the conditions separated by AND is TRUE
ANY TRUE if any of the subquery values meet the condition
BETWEEN TRUE if the operand is within the range of comparisons
EXISTS TRUE if the subquery returns one or more records
IN TRUE if the operand is equal to one of a list of expressions
LIKE TRUE if the operand matches a pattern
NOT Displays a record if the condition(s) is NOT TRUE
OR TRUE if any of the conditions separated by OR is TRUE
SOME TRUE if any of the subquery values meet the condition

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