141 lines
3.9 KiB
Plaintext
141 lines
3.9 KiB
Plaintext
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-- 检查表是否存在，不存在则创建
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IF NOT EXISTS (SELECT * FROM sys.tables WHERE name = 'LostIndexCreationList')
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BEGIN
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CREATE TABLE LostIndexCreationList (
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TableName NVARCHAR(128),
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ColumnName NVARCHAR(128)
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);
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END
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-- 修正版全库ID字段索引创建脚本
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BEGIN TRY
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--BEGIN TRANSACTION;
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-- 创建临时表存储需要创建索引的表和字段
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CREATE TABLE #IndexCreationList
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(
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TableName NVARCHAR(128),
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ColumnName NVARCHAR(128)
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);
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-- 找出所有需要创建索引的字段
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INSERT INTO #IndexCreationList
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SELECT t.name AS TableName,
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c.name AS ColumnName
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FROM sys.tables t
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JOIN sys.columns c
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ON t.object_id = c.object_id
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WHERE c.name LIKE '%ID'
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AND t.name NOT LIKE 'tmp%'
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AND t.name NOT IN ( 't_EpDataSourceInfo' )
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AND t.is_ms_shipped = 0
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AND NOT EXISTS
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(
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SELECT 1
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FROM sys.indexes i
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JOIN sys.index_columns ic
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ON i.object_id = ic.object_id
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AND i.index_id = ic.index_id
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WHERE i.object_id = t.object_id
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AND ic.column_id = c.column_id
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AND i.name = 'IX_' + t.name + '_' + c.name
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);
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SELECT *
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FROM #IndexCreationList;
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DECLARE @sql NVARCHAR(MAX) = '';
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DECLARE @tableName NVARCHAR(128),
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@columnName NVARCHAR(128),@rows int=0;
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DECLARE cur CURSOR FOR
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SELECT TableName,
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ColumnName
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FROM #IndexCreationList;
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OPEN cur;
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FETCH NEXT FROM cur
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INTO @tableName,
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@columnName;
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WHILE @@FETCH_STATUS = 0
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BEGIN
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BEGIN TRY
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-- 动态生成索引创建语句
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set @rows =@rows +1;
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SET @sql
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= 'CREATE INDEX IX_' + @tableName + '_' + @columnName + ' ON ' + QUOTENAME(@tableName) + '('
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+ QUOTENAME(@columnName) + ');';
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-- 执行语句
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PRINT CONVERT(NVARCHAR(100),@rows) +' Executing: ' + @sql;
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EXEC sp_executesql @sql;
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END TRY
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BEGIN CATCH
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-- 捕获错误并记录
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INSERT INTO dbo.LostIndexCreationList
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(
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TableName,
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ColumnName
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)
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VALUES
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( @tableName, -- TableName - nvarchar(128)
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@columnName -- ColumnName - nvarchar(128)
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)
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PRINT 'Error occurred while creating index IX_' + @tableName + '_' + @columnName + ': ' + ERROR_MESSAGE();
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END CATCH;
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FETCH NEXT FROM cur
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INTO @tableName,
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@columnName;
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END;
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CLOSE cur;
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DEALLOCATE cur;
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---- 动态生成并执行创建索引的SQL
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--DECLARE @sql NVARCHAR(MAX) = '';
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--SELECT @sql = @sql +
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-- 'CREATE INDEX IX_' + TableName + '_' + ColumnName +
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-- ' ON ' + QUOTENAME(TableName) + '(' + QUOTENAME(ColumnName) + ');' + CHAR(13)
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--FROM #IndexCreationList;
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--IF LEN(@sql) > 0
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--BEGIN
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-- EXEC sp_executesql @sql;
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-- PRINT '成功创建 ' + CAST(@@ROWCOUNT AS NVARCHAR(10)) + ' 个索引';
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--END
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--ELSE
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--BEGIN
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-- PRINT '没有需要创建的索引，所有ID字段索引已存在';
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--END
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-- 验证结果
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SELECT t.name AS 表名,
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i.name AS 索引名称,
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c.name AS 字段名
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FROM sys.tables t
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JOIN sys.indexes i
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ON t.object_id = i.object_id
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JOIN sys.index_columns ic
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ON i.object_id = ic.object_id
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AND i.index_id = ic.index_id
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JOIN sys.columns c
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ON ic.object_id = c.object_id
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AND ic.column_id = c.column_id
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WHERE i.name LIKE 'IX_%_%ID'
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ORDER BY t.name,
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i.name;
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DROP TABLE #IndexCreationList;
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--COMMIT TRANSACTION;
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END TRY
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BEGIN CATCH
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IF @@TRANCOUNT > 0
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ROLLBACK TRANSACTION;
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PRINT '错误发生: ' + ERROR_MESSAGE();
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PRINT '错误行号: ' + CAST(ERROR_LINE() AS NVARCHAR(10));
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END CATCH;
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