Python alter_column示例

示例#1

def visit_column_type(element: "ColumnType", compiler: "SpannerDDLCompiler",
                      **kw) -> str:
    return "%s %s %s" % (
        alter_table(compiler, element.table_name, element.schema),
        alter_column(compiler, element.column_name),
        "%s" % format_type(compiler, element.type_),
    )

示例#2

文件： mssql.py 项目： 13917547121/me

def visit_column_nullable(element, compiler, **kw):
    return "%s %s %s %s" % (
        alter_table(compiler, element.table_name, element.schema),
        alter_column(compiler, element.column_name),
        format_type(compiler, element.existing_type),
        "NULL" if element.nullable else "NOT NULL"
    )

示例#3

def visit_column_nullable(element: "ColumnNullable",
                          compiler: "SpannerDDLCompiler", **kw) -> str:
    return "%s %s %s %s" % (
        alter_table(compiler, element.table_name, element.schema),
        alter_column(compiler, element.column_name),
        format_type(compiler, element.existing_type),
        "" if element.nullable else "NOT NULL",
    )

示例#4

文件： mssql.py 项目： 13917547121/me

def visit_column_type(element, compiler, **kw):
    return "%s %s %s" % (
        alter_table(compiler, element.table_name, element.schema),
        alter_column(compiler, element.column_name),
        format_type(compiler, element.type_)
    )

示例#5

def visit_column_type(element, compiler, **kw):
    return "%s %s %s" % (alter_table(
        compiler, element.table_name,
        element.schema), alter_column(compiler, element.column_name),
                         format_type(compiler, element.type_))

示例#6

def visit_column_nullable(element, compiler, **kw):
    return "%s %s %s %s" % (alter_table(
        compiler, element.table_name,
        element.schema), alter_column(compiler, element.column_name),
                            format_type(compiler, element.existing_type),
                            "NULL" if element.nullable else "NOT NULL")

示例#7

文件： ibm_db.py 项目： waliwali/ibm-db.ibm-db-alembic

def visit_column_type(element, compiler, **kw):
    return "%s %s %s" % (
        base.alter_table(compiler, element.table_name, element.schema),
        base.alter_column(compiler, element.column_name),
        "SET DATA TYPE %s" % base.format_type(compiler, element.type_)
    )

示例#8

def visit_column_type(element, compiler, **kw):
    return "%s %s %s" % (
        base.alter_table(compiler, element.table_name, element.schema),
        base.alter_column(compiler, element.column_name),
        "SET DATA TYPE %s" % base.format_type(compiler, element.type_))