<?xml version="1.0" encoding="UTF-8" ?>
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<!DOCTYPE mapper
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PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
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"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
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<mapper namespace="com.dl.generator.mapper.GenTableColumnMapper">
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<resultMap type="GenTableColumn" id="GenTableColumnResult">
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<id property="columnId" column="column_id" />
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<result property="tableId" column="table_id" />
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<result property="columnName" column="column_name" />
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<result property="columnComment" column="column_comment" />
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<result property="columnType" column="column_type" />
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<result property="javaType" column="java_type" />
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<result property="javaField" column="java_field" />
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<result property="isPk" column="is_pk" />
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<result property="isIncrement" column="is_increment" />
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<result property="isRequired" column="is_required" />
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<result property="isInsert" column="is_insert" />
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<result property="isEdit" column="is_edit" />
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<result property="isList" column="is_list" />
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<result property="isQuery" column="is_query" />
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<result property="queryType" column="query_type" />
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<result property="htmlType" column="html_type" />
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<result property="dictType" column="dict_type" />
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<result property="sort" column="sort" />
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<result property="createBy" column="create_by" />
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<result property="createTime" column="create_time" />
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<result property="updateBy" column="update_by" />
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<result property="updateTime" column="update_time" />
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</resultMap>
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<select id="selectDbTableColumnsByName" parameterType="String" resultMap="GenTableColumnResult">
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<if test="@com.dl.common.helper.DataBaseHelper@isMySql()">
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select column_name,
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(case when (is_nullable = 'no' <![CDATA[ && ]]> column_key != 'PRI') then '1' else null end) as is_required,
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(case when column_key = 'PRI' then '1' else '0' end) as is_pk,
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ordinal_position as sort,
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column_comment,
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(case when extra = 'auto_increment' then '1' else '0' end) as is_increment,
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column_type
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from information_schema.columns where table_schema = (select database()) and table_name = (#{tableName})
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order by ordinal_position
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</if>
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<if test="@com.dl.common.helper.DataBaseHelper@isOracle()">
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select lower(temp.column_name) as column_name,
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(case when (temp.nullable = 'N' and temp.constraint_type != 'P') then '1' else null end) as is_required,
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(case when temp.constraint_type = 'P' then '1' else '0' end) as is_pk,
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temp.column_id as sort,
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temp.comments as column_comment,
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(case when temp.constraint_type = 'P' then '1' else '0' end) as is_increment,
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lower(temp.data_type) as column_type
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from (
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select col.column_id, col.column_name,col.nullable, col.data_type, colc.comments, uc.constraint_type, row_number()
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over (partition by col.column_name order by uc.constraint_type desc) as row_flg
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from user_tab_columns col
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left join user_col_comments colc on colc.table_name = col.table_name and colc.column_name = col.column_name
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left join user_cons_columns ucc on ucc.table_name = col.table_name and ucc.column_name = col.column_name
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left join user_constraints uc on uc.constraint_name = ucc.constraint_name
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where col.table_name = upper(#{tableName})
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) temp
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WHERE temp.row_flg = 1
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ORDER BY temp.column_id
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</if>
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<if test="@com.dl.common.helper.DataBaseHelper@isPostgerSql()">
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SELECT column_name, is_required, is_pk, sort, column_comment, is_increment, column_type
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FROM (
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SELECT c.relname AS table_name,
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a.attname AS column_name,
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d.description AS column_comment,
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CASE WHEN a.attnotnull AND con.conname IS NULL THEN 1 ELSE 0
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END AS is_required,
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CASE WHEN con.conname IS NOT NULL THEN 1 ELSE 0
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END AS is_pk,
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a.attnum AS sort,
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CASE WHEN "position"(pg_get_expr(ad.adbin, ad.adrelid),
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((c.relname::text || '_'::text) || a.attname::text) || '_seq'::text) > 0 THEN 1 ELSE 0
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END AS is_increment,
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btrim(
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CASE WHEN t.typelem <![CDATA[ <> ]]> 0::oid AND t.typlen = '-1'::integer THEN 'ARRAY'::text ELSE
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CASE WHEN t.typtype = 'd'::"char" THEN format_type(t.typbasetype, NULL::integer)
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ELSE format_type(a.atttypid, NULL::integer) END
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END, '"'::text
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) AS column_type
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FROM pg_attribute a
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JOIN (pg_class c JOIN pg_namespace n ON c.relnamespace = n.oid) ON a.attrelid = c.oid
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LEFT JOIN pg_description d ON d.objoid = c.oid AND a.attnum = d.objsubid
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LEFT JOIN pg_constraint con ON con.conrelid = c.oid AND (a.attnum = ANY (con.conkey))
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LEFT JOIN pg_attrdef ad ON a.attrelid = ad.adrelid AND a.attnum = ad.adnum
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LEFT JOIN pg_type t ON a.atttypid = t.oid
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WHERE (c.relkind = ANY (ARRAY ['r'::"char", 'p'::"char"]))
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AND a.attnum > 0
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AND n.nspname = 'public'::name
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ORDER BY c.relname, a.attnum
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) temp
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WHERE table_name = (#{tableName})
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AND column_type <![CDATA[ <> ]]> '-'
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</if>
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<if test="@com.dl.common.helper.DataBaseHelper@isSqlServer()">
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SELECT
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cast(A.NAME as nvarchar) as column_name,
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cast(B.NAME as nvarchar) + (case when B.NAME = 'numeric' then '(' + cast(A.prec as nvarchar) + ',' + cast(A.scale as nvarchar) + ')' else '' end) as column_type,
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cast(G.[VALUE] as nvarchar) as column_comment,
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(SELECT 1 FROM INFORMATION_SCHEMA.KEY_COLUMN_USAGE Z WHERE TABLE_NAME = D.NAME and A.NAME = Z.column_name ) as is_pk,
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colorder as sort
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FROM SYSCOLUMNS A
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LEFT JOIN SYSTYPES B ON A.XTYPE = B.XUSERTYPE
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INNER JOIN SYSOBJECTS D ON A.ID = D.ID AND D.XTYPE='U' AND D.NAME != 'DTPROPERTIES'
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LEFT JOIN SYS.EXTENDED_PROPERTIES G ON A.ID = G.MAJOR_ID AND A.COLID = G.MINOR_ID
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LEFT JOIN SYS.EXTENDED_PROPERTIES F ON D.ID = F.MAJOR_ID AND F.MINOR_ID = 0
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WHERE D.NAME = #{tableName}
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ORDER BY A.COLORDER
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</if>
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</select>
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</mapper>
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