Script to Generate All Indexes in a Database in SQL

Author: jim-dotcom

sql-queries-10/generate-all-indexes-in-database/implementation-in-mysql.sql

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+SELECT 
+    TABLE_NAME, 
+    INDEX_NAME, 
+    COLUMN_NAME
+FROM 
+    information_schema.STATISTICS
+WHERE 
+    TABLE_SCHEMA = 'University'
+ORDER BY 
+    TABLE_NAME, 
+    INDEX_NAME, 
+    SEQ_IN_INDEX;
+
+
+SELECT 
+    TABLE_NAME, 
+    INDEX_NAME, 
+    COLUMN_NAME,
+    NON_UNIQUE,
+    INDEX_TYPE
+FROM 
+    information_schema.STATISTICS
+WHERE 
+    TABLE_SCHEMA = 'University'
+ORDER BY 
+    TABLE_NAME, 
+    INDEX_NAME, 
+    SEQ_IN_INDEX;

sql-queries-10/generate-all-indexes-in-database/implementation-in-postgres.sql

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+SELECT 
+    schemaname, 
+    tablename, 
+    indexname, 
+    indexdef
+FROM 
+    pg_indexes
+WHERE 
+    schemaname = 'public'
+ORDER BY 
+    tablename, 
+    indexname;
+
+
+
+SELECT 
+    t.relname AS table_name,
+    i.relname AS index_name,
+    a.attname AS column_name
+FROM 
+    pg_class t
+JOIN 
+    pg_index ix ON t.oid = ix.indrelid
+JOIN 
+    pg_class i ON i.oid = ix.indexrelid
+JOIN 
+    pg_attribute a ON a.attrelid = t.oid AND a.attnum = ANY(ix.indkey)
+WHERE 
+    t.relkind = 'r'
+    AND t.relnamespace = 'public'::regnamespace
+ORDER BY 
+    t.relname, 
+    i.relname;

sql-queries-10/generate-all-indexes-in-database/implementation-in-sqlserver.sql

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+SELECT 
+    t.name AS table_name,
+    ind.name AS index_name,
+    col.name AS column_name,
+    ind.is_unique,
+    ind.type_desc AS index_type
+FROM 
+    sys.indexes ind
+INNER JOIN 
+    sys.index_columns ic ON ind.object_id = ic.object_id AND ind.index_id = ic.index_id
+INNER JOIN 
+    sys.columns col ON ic.object_id = col.object_id AND ic.column_id = col.column_id
+INNER JOIN 
+    sys.tables t ON ind.object_id = t.object_id
+WHERE 
+    t.is_ms_shipped = 0
+ORDER BY 
+    t.name, ind.name, ic.key_ordinal;