mysql-cheat-sheet-v1.pdf

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MySQL Cheat Sheet
Mathematical
ABS
SIGN
MOD
FLOOR
CEILING
ROUND
DIV
EXP
LN
LOG,LOG2,LOG10
POW
POWER
SQRT
PI
COS
SIN
TAN
ACOS
ASIN
ATAN, ATAN2
COT
RAND
LEAST
GREATEST
DEGREES
RADIANS
TRUNCATE
Control Flow
IFNULL
NULLIF
IF
DATA TYPES
MYSQL FUNCTIONS IN PHP
String
ASCII
ORD
CONV
BIN,OCT,HEX
CHAR
CONCAT
CONCAT_WS
LENGTH
CHAR_LENGTH
BIT_LENGTH
LOCATE
INSTR
LPAD
RPAD
LEFT
RIGHT
SUBSTRING
MID
SUBSTRING_INDEX
LTRIM
RTRIM
TRIM
SOUNDEX
SPACE
REPLACE
REPEAT
REVERSE
INSERT
ELT
FIELD
LCASE
UCASE
LOAD_FILE
QUOTE
CHAR
VARCHAR
TINYTEXT
TEXT
BLOB
MEDIUMTEXT
MEDIUMBLOB
LONGTEXT
LONGBLOB
* TINYINT
* SMALLINT
* MEDIUMINT
* INT
String, length 0 - 255
String, length 0 - 255
String, length 0 - 255
String, length 0 - 65535
String, length 0 - 65535
String, length 0 - 16777215
String, length 0 - 16777215
String, length 0 - 4294967295
String, length 0 - 4294967295
Integer, -128 to 127
Integer, -32768 to 32767
Integer, -8388608 to 8388607
Integer, -2147483648 to
2147483647
Int, -9223372036854775808
to 9223372036854775807
Decimal (precise to 23 digits)
Decimal (24 to 53 digits)
"DOUBLE" stored as string
YYYY-MM-DD
YYYY-MM-DD HH:MM:SS
YYYYMMDDHHMMSS
HH:MM:SS
One of preset options
Selection of preset options
mysql_affected_rows
mysql_close
mysql_connect
mysql_data_seek
mysql_db_name
mysql_errno
mysql_error
mysql_fetch_array
mysql_fetch_assoc
mysql_fetch_field
mysql_fetch_lengths
mysql_fetch_object
mysql_fetch_row
mysql_field_flags
mysql_field_len
mysql_field_name
mysql_field_seek
mysql_field_table
mysql_field_type
mysql_free_result
mysql_insert_id
mysql_list_dbs
mysql_list_processes
mysql_list_tables
mysql_num_fields
mysql_num_rows
mysql_pconnect
mysql_query
mysql_real_escape_string
mysql_select_db
* BIGINT
Date and Time
DAYOFWEEK
WEEKDAY
DAYOFMONTH
DAYOFYEAR
MONTH
DAYNAME
MONTHNAME
QUARTER
WEEK
YEAR
YEARWEEK
HOUR
MINUTE
SECOND
PERIOD_ADD
PERIOD_DIFF
DATE_ADD
DATE_SUB
ADDDATE
SUBDATE
EXTRACT
TO_DAYS
FROM_DAYS
DATE_FORMAT
TIME_FORMAT
CURRENT_DATE
CURRENT_TIME
NOW
SYSDATE
UNIX_TIMESTAMP
FROM_UNIXTIME
SEC_TO_TIME
TIME_TO_SEC
FLOAT
DOUBLE
DECIMAL
DATE
DATETIME
TIMESTAMP
TIME
ENUM
SET
Comparison
STRCMP
* Note: "UNSIGNED" TINYINT, SMALLINT,
MEDIUMINT, INT, BIGINT have the same
range of values but start at 0 , e.g. TINYINT
UNSIGNED is between 0 and 255.
Cast
CAST
CONVERT
SAMPLE SELECT QUERIES
Other
BIT_COUNT
DATABASE
USER
SYSTEM_USER
SESSION_USER
CURRENT_USER
PASSWORD
OLD_PASSWORD
ENCRYPT
DECODE
MD5
SHA1
AES_ENCRYPT
AES_DECRYPT
DES_ENCRYPT
DES_DECRYPT
LAST_INSERT_ID
FORMAT
VERSION
CONNECTION_ID
GET_LOCK
RELEASE_LOCK
IS_FREE_LOCK
BENCHMARK
INET_NTOA
INET_ATON
FOUND_ROWS
SELECT * FROM tablename
SELECT column FROM tablename
SELECT COUNT(*) FROM tablename
SELECT SUM(column) FROM tablename
SELECT DISTINCT column FROM tablename
SELECT * FROM tablename WHERE condition
SELECT * FROM tablename WHERE BINARY condition
SELECT * FROM table1 INNER JOIN table2 on
table1.id = table2.id
SELECT table1.* FROM table1 INNER JOIN table2 on
table1.id = table2.id
SELECT LAST_INSERT_ID() as new_id
SELECT max(column) AS alias
# Returns all columns
# Returns specific column
# Returns number of rows
# Returns sum of column
# Returns unique values of column
# Returns rows that match condition
# Condition is case-sensitive
# Join two tables, return all columns
Group
COUNT
AVG
MIN
MAX
SUM
GROUP_CONCAT
VARIANCE
STD
STDDEV
BIT_OR
BIT_AND
# Only return columns from table1
# Returns ID of last created row
# Return maxium value in column as
"alias"
# Return all rows ordering by column
# Return first 20 rows after row 10
SELECT * FROM table ORDER BY column
SELECT * FROM table LIMIT 10, 20
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