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.\" ========================================================================
.\"
.IX Title "Alzabo::SQLMaker::MySQL 3pm"
.TH Alzabo::SQLMaker::MySQL 3pm "2015-05-24" "perl v5.20.2" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.SH "NAME"
Alzabo::SQLMaker::MySQL \- Alzabo SQL making class for MySQL
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\&  use Alzabo::SQLMaker;
\&
\&  my $sql = Alzabo::SQLMaker\->new( sql => \*(AqMySQL\*(Aq );
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
This class implementes MySQL-specific \s-1SQL\s0 creation.  MySQL does not
allow subselects.  Any attempt to use a subselect (by passing an
\&\f(CW\*(C`Alzabo::SQMaker\*(C'\fR object in as parameter to a method) will result in
an \f(CW\*(C`Alzabo::Exception::SQL\*(C'\fR error.
.SH "METHODS"
.IX Header "METHODS"
Almost all of the functionality inherited from Alzabo::SQLMaker is
used as is.  The only overridden methods are \f(CW\*(C`limit()\*(C'\fR and
\&\f(CW\*(C`get_limit()\*(C'\fR, as MySQL does allow for a \f(CW\*(C`LIMIT\*(C'\fR clause in its \s-1SQL.\s0
.SH "EXPORTED SQL FUNCTIONS"
.IX Header "EXPORTED SQL FUNCTIONS"
\&\s-1SQL\s0 may be imported by name or by tags.  They take arguments as
documented in the MySQL documentation (version 3.23.39).  The
functions (organized by tag) are:
.SS ":math"
.IX Subsection ":math"
.Vb 10
\& PI
\& RAND
\& MOD
\& ROUND
\& POW
\& POWER
\& ATAN2
\& ABS
\& SIGN
\& FLOOR
\& CEILING
\& EXP
\& LOG
\& LOG10
\& SQRT
\& COS
\& SIN
\& TAN
\& ACOS
\& ASIN
\& ATAN
\& COT
\& DEGREES
\& RADIANS
\& TRUNCATE
.Ve
.SS ":string"
.IX Subsection ":string"
.Vb 10
\& CHAR
\& POSITION
\& INSTR
\& LEFT
\& RIGHT
\& FIND_IN_SET
\& REPEAT
\& LEAST
\& GREATEST
\& CONCAT
\& ELT
\& FIELD
\& MAKE_SET
\& LOCATE
\& SUBSTRING
\& CONV
\& LPAD
\& RPAD
\& MID
\& SUBSTRING_INDEX
\& REPLACE
\& CONCAT_WS
\& EXPORT_SET
\& INSERT
\& ASCII
\& ORD
\& BIN
\& OCT
\& HEX
\& LENGTH
\& OCTET_LENGTH
\& CHAR_LENGTH
\& CHARACTER_LENGTH
\& TRIM
\& LTRIM
\& RTRIM
\& SOUNDEX
\& SPACE
\& REVERSE
\& LCASE
\& LOWER
\& UCASE
\& UPPER
.Ve
.SS ":datetime"
.IX Subsection ":datetime"
.Vb 10
\& CURDATE
\& CURRENT_DATE
\& CURTIME
\& CURRENT_TIME
\& NOW
\& SYSDATE
\& CURRENT_TIMESTAMP
\& UNIX_TIMESTAMP
\& WEEK
\& PERIOD_ADD
\& PERIOD_DIFF
\& DATE_ADD
\& DATE_SUB
\& ADDDATE
\& SUBDATE
\& DATE_FORMAT
\& TIME_FORMAT
\& FROM_UNIXTIME
\& DAYOFWEEK
\& WEEKDAY
\& DAYOFYEAR
\& MONTH
\& DAYNAME
\& MONTHNAME
\& QUARTER
\& YEAR
\& YEARWEEK
\& HOUR
\& MINUTE
\& SECOND
\& TO_DAYS
\& FROM_DAYS
\& SEC_TO_TIME
\& TIME_TO_SEC
.Ve
.SS ":aggregate"
.IX Subsection ":aggregate"
These are functions which operate on an aggregate set of values all at
once.
.PP
.Vb 7
\& COUNT
\& AVG
\& MIN
\& MAX
\& SUM
\& STD
\& STDDEV
.Ve
.SS ":system"
.IX Subsection ":system"
These are functions which return information about the MySQL server.
.PP
.Vb 11
\& DATABASE
\& USER
\& SYSTEM_USER
\& SESSION_USER
\& VERSION
\& CONNECTION_ID
\& LAST_INSERT_ID
\& GET_LOCK
\& RELEASE_LOCK
\& BENCHMARK
\& MASTER_POS_WAIT
.Ve
.SS ":control"
.IX Subsection ":control"
These are flow control functions:
.PP
.Vb 3
\& IFNULL
\& NULLIF
\& IF
.Ve
.SS ":misc"
.IX Subsection ":misc"
These are functions which don't fit into any other categories.
.PP
.Vb 11
\& ENCRYPT
\& ENCODE
\& DECODE
\& FORMAT
\& INET_NTOA
\& INET_ATON
\& BIT_OR
\& BIT_AND
\& PASSWORD
\& MD5
\& LOAD_FILE
.Ve
.SS ":fulltext"
.IX Subsection ":fulltext"
These are functions related to MySQL's fulltext searching
capabilities.
.PP
.Vb 3
\& MATCH
\& AGAINST
\& IN_BOOLEAN_MODE
.Ve
.PP
\&\s-1NOTE:\s0 In MySQL 4.0 and greater, it is possible to say that a search is
in boolean mode in order to change how MySQL handles the argument
given to \s-1AGAINST. \s0 This will not work with earlier versions.
.SS ":common"
.IX Subsection ":common"
These are functions from other groups that are most commonly used.
.PP
.Vb 7
\& NOW
\& COUNT
\& AVG
\& MIN
\& MAX
\& SUM
\& DISTINCT
.Ve
.SH "AUTHOR"
.IX Header "AUTHOR"
Dave Rolsky, <dave@urth.org>