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MS SQL to PostgreSQL Types Mapping |
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MS SQL and PostgreSQL have similar data types. Most of them are equal while others are not. When running Microsoft SQL to PostgreSQL migration it is important to keep in mind the correct types mapping:
| SQL Server | PostgreSQL |
| BIGINT | BIGINT |
| BINARY(n) | BYTEA |
| BIT | BOOLEAN |
| CHAR(n), CHARACTER(n) | CHAR(n), CHARACTER(n) |
| DATE | DATE |
| DATETIME | TIMESTAMP(3) |
| DATETIME2(p) | TIMESTAMP(p) |
| DATETIMEOFFSET(p) | TIMESTAMP(p) WITH TIME ZONE |
| DECIMAL(p,s), DEC(p,s) | DECIMAL(p,s), DEC(p,s) |
| DOUBLE PRECISION | DOUBLE PRECISION |
| FLOAT(p) | FLOAT(p) |
| IMAGE | BYTEA |
| INT, INTEGER | INT, INTEGER |
| MONEY | MONEY |
| NCHAR(n) | CHAR(n) |
| NTEXT | TEXT |
| NUMERIC(p,s) | NUMERIC(p,s) |
| NVARCHAR(n) | VARCHAR(n) |
| NVARCHAR(max) | TEXT |
| REAL | REAL |
| ROWVERSION | BYTEA |
| SMALLDATETIME | TIMESTAMP(0) |
| SMALLINT | SMALLINT |
| SMALLMONEY | MONEY |
| TEXT | TEXT |
| TIME(p) | TIME(p) |
| TIMESTAMP | BYTEA |
| TINYINT | SMALLINT |
| UNIQUEIDENTIFIER | UUID or CHAR(16) |
| VARBINARY(n), VARBINARY(max) | BYTEA |
| VARCHAR(n) | VARCHAR(n) |
| VARCHAR(max) | TEXT |
| XML | XML |