Question

为了确保数据库的一致性，我想将每个表的最后一列的类型批量设置为TINYINT(1) UNSIGNED NOT NULL。

我发现如何遍历表并定位最后一列，更改其类型并设置NOT NULL标志，但我无法找到如何设置UNSIGNED标志。

我试过了两个：

column = grt.root.wb.doc.physicalModels[0].catalog.schemata[0].tables[1].columns[7]
column.flags = ['UNSIGNED']
column.simpleType.flags = ['UNSIGNED']

但我得到TypeError: flag is read-only。我还尝试将列的dataType属性设置为对具有UNSIGNED标志（通过GUI定义）的列的dataType属性的引用。

最后我尝试了：

column.setParseType('TINYINT(1) UNSIGNED')

但它返回0并且不会更改任何内容（如果我删除UNSIGNED则会返回1，所以我认为它不能使用标记）。

有没有办法在MySQL Workbench中使用Python脚本更改列标志（即：UNSIGNED，ZEROFILL）？

Answer 1

您需要使用grt.root.wb.doc.physicalModels[0].catalog.schemata[0].tables[1].columns[7].flags.append('UNSIGNED')

Answer 2

要添加的是whit column.isNoNull = 1

# -*- coding: utf-8 -*-
# MySQL Workbench Python script
# <description>
# Written in MySQL Workbench 6.3.4

import grt
#import mforms

# get a reference to the schema in the model. This will get the 1st schema in it.
schema = grt.root.wb.doc.physicalModels[0].catalog.schemata[0]
# iterate through all tables
for table in schema.tables:
    # create a new column object and set its name
    column = grt.classes.db_mysql_Column()
    column.name = "auditoria_fecha_creacion"
    # add it to the table
    table.addColumn(column)
    # set the datatype of the column
    column.setParseType("TIMESTAMP", None)
    column.defaultValue = "CURRENT_TIMESTAMP"
    column.isNotNull=1

Answer 3

我知道自提出问题以来已经过了2年

import grt
#import mforms

# tables you want to skip
skip_tables = ["main_defs","some_other_table"]

def addColumn(table,name,datatype,defaultvalue):
    # skip this column_name if there is already a column with this name
    column_names = [x.name for x in table.columns]
    if name in column_names:
        return
    column = grt.classes.db_mysql_Column()
    column.name = name
    table.addColumn(column)
    column.setParseType(datatype, datatypes)
    column.defaultValue = defaultvalue
    column.isNotNull=1


# get a reference to the schema in the model. This will get the 1st schema in it.
schema = grt.root.wb.doc.physicalModels[0].catalog.schemata[0]
datatypes = grt.root.wb.rdbmsMgmt.rdbms[0].simpleDatatypes
# iterate through all tables
for table in schema.tables:

    # skip the current table if it is in skip_tables
    if table.name in skip_tables:
        continue
    addColumn(table,"created_at","varchar(45)","")
    addColumn(table,"updated_at","varchar(45)","")

这提供了有关如何执行此操作的基本知识

更改MySQL Workbench脚本shell中的列标志

3 个答案: