ifnull postgres
SELECT coalesce(column, 1)sql vs mysql
• SQL is a standard language for
retrieving and manipulating structured
databases. On the contrary,
MySQL is a relational database management
system, like SQL Server, Oracle or
IBM DB2, that is used to manage SQL
databases.data types mysql vs postgresql
MySQL PostgreSQL SQLite
TINYINT SMALLINT INTEGER
SMALLINT SMALLINT
MEDIUMINT INTEGER
BIGINT BIGINT
BIT BIT INTEGER
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TINYINT UNSIGNED SMALLINT INTEGER
SMALLINT UNSIGNED INTEGER
MEDIUMINT UNSIGNED INTEGER
INT UNSIGNED BIGINT
BIGINT UNSIGNED NUMERIC(20)
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DOUBLE DOUBLE PRECISION REAL
FLOAT REAL REAL
DECIMAL DECIMAL REAL
NUMERIC NUMERIC REAL
_______________________________________________________
BOOLEAN BOOLEAN INTEGER
_______________________________________________________
DATE DATE TEXT
TIME TIME
DATETIME TIMESTAMP
_______________________________________________________
TIMESTAMP DEFAULT TIMESTAMP DEFAULT TEXT
NOW() NOW()
_______________________________________________________
LONGTEXT TEXT TEXT
MEDIUMTEXT TEXT TEXT
BLOB BYTEA BLOB
VARCHAR VARCHAR TEXT
CHAR CHAR TEXT
_______________________________________________________
columnname INT columnname SERIAL INTEGER PRIMARY
AUTO_INCREMENT KEY AUTOINCREMENTCopyright © 2021 Codeinu
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