Calculate median in PostgreSQL

PHOTO

Wed Aug 18 2021 21:04:17 GMT+0000 (Coordinated Universal Time)

Saved by @ofatunde #sql

## replace "sale" with variable name and "sales" with table name
SELECT PERCENTILE_CONT(0.5) WITHIN GROUP(ORDER BY sale) FROM sales;

https://ubiq.co/database-blog/calculate-median-postgresql/

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select 
				   a.id_transaksi_suretyship,
                   b.jenis_suretyship,
                   c.suretyship,
                   d.nomor_sk,
                   d.tgl_sk,
				   d.tgl_sk_cetak,
                   e.nama_principal,
                   f.nama_obligee,
				   a.flag_deletion,
				   a.id_reference,
                   a.nilai_proyek,
                   a.nilai_bond,
                   a.nilai_ijp,
				   a.fee_base persen_fee_base,
				   a.fee_base * a.nilai_ijp/100 fee_base,
				   a.komisi_agen persen_komisi_agen,
				   a.komisi_agen*a.nilai_ijp/100 komisi_agen,
				   a.persen_reasuransi ,
				   --a.persen_reasuransi * a.nilai_ijp/100 reasuransi,
				   a.reasuransi,
				   --coalesce(a.fee_base/100,0)*a.persen_reasuransi * a.nilai_ijp/100 reasuransi_fee_base,
				   a.reasuransi_fee_base,
				   a.persen_coguarantee,
				   a.persen_coguarantee * a.nilai_ijp/100 coguarantee,
				   a.potongan_co persen_potongan_co,
				   a.potongan_co * a.nilai_ijp/100 potongan_co,
				   a.potongan_re persen_potongan_re,
				   a.potongan_re * a.nilai_ijp/100 potongan_re,
				   to_char(a.periode_berlaku + (a.jangka_waktu)* '1 day'::interval, 'DD-MM-YYYY')  jatuh_tempo,
				   to_char(a.periode_berlaku, 'DD-MM-YYYY') periode_berlaku,
				   coalesce(e.jumlah_karyawan,0) tenaga_kerja,
				   --a.nilai_bond * (100-coalesce(a.persen_reasuransi,0))/100 as plafond_or
				   a.plafond_or,
				   a.penjaminan nilai_penjaminan,
				   c.is_konvensional,
				   0 nilai_asuransi_1,
					0 nilai_asuransi_2,
				  (a.fee_base*(a.persen_coguarantee*a.nilai_ijp/100)/100)  coguarantee_fee_base,
				 CASE
				        when cast(usia AS varchar) IS NULL then cast(tanggal_usia AS varchar)
					    else cast(usia AS varchar)
				 END umur,
				  '--' note,
				  case
				  	when d.tgl_sk >= '2016-12-01' and d.tgl_sk <= '2017-11-30' then 
				  	(coalesce(a.reasuransi,0)-(coalesce(a.reasuransi_fee_base,0)))*5/100
				  	when d.tgl_sk >= '2017-12-01' and d.tgl_sk <= '2019-08-31' then 
				  	(coalesce(a.reasuransi,0)-(coalesce(a.reasuransi_fee_base,0)))*7.5/100
				  	when d.tgl_sk > '2019-09-01' then 
				  	(coalesce(a.reasuransi,0)-(coalesce(a.reasuransi_fee_base,0)))*10/100
				  	else 0
				  	end ri_com,
						CASE
							when  d.tgl_sk >= '2019-09-30' and d.tgl_sk <= '2020-04-30' then
							((COALESCE(a.persen_coguarantee,0)* a.nilai_ijp/100)-((COALESCE(a.persen_coguarantee,0)* a.nilai_ijp/100)*(COALESCE(a.fee_base,0)/100)))*5/100
							when  d.tgl_sk >= '2020-05-01'  then
							((COALESCE(a.persen_coguarantee,0)* a.nilai_ijp/100)-((COALESCE(a.persen_coguarantee,0)* a.nilai_ijp/100)*(COALESCE(a.fee_base,0)/100)))*7.5/100
							ELSE 0
							end komisi_co,
							0 komisi_asuransi
							--(ijp cogar - feebase cogar) x persen komisi

						

                from 
                  v_tr_transaksi_suretyship a
                  inner join mt_jenis_suretyship b on a.id_jenis_suretyship = b.id_jenis_suretyship
                  inner join mt_suretyship c on b.id_mt_suretyship = c.id_mt_suretyship
                  inner join tr_sertifikat_penjaminan d on a.id_sertifikat = d.id_sertifikat
                  inner join mt_principal e on a.id_principal = e.id_principal
                  inner join mt_obligee f on a.id_obligee = f.id_obligee
				  Left join mt_agen g on a.id_mt_agen=g.id_mt_agen
				  left join mt_broker h on d.reas_id_broker = h.id_broker
    	 
	            where 
				--( a.flag_deletion is null OR (a.flag_deletion is not null and a.change_date > '2020-07-31') ) AND
				--d.id_reference is null and
				--a.flag_deletion is null and
	              -- d.tgl_sk >='2015-01-01'  and d.tgl_sk<='2020-07-31'
				  a.flag_deletion is null and 		
					d.flag_delete is null and 
					( 
						( tgl_sk >='2015-01-01' and  tgl_sk <='2020-07-31'  and 
							( tgl_sk_cetak is null or ( tgl_sk_cetak is not null and d.id_reference is null) ) 
						) OR  
						
						( tgl_sk_cetak >='2015-01-01' and  tgl_sk_cetak <='2020-07-31' and d.id_reference is not null)
					)  
					
	          
				 union all
				 select 
					a.id_transaksi_suretyship,
                   b.jenis_suretyship,
                   c.suretyship,
                   d.nomor_sk,
                   d.tgl_sk,
				   d.tgl_sk_cetak,
                   e.nama_principal,
                   f.nama_bank_cabang as nama_obligee,
				   a.flag_deletion,
				   a.id_reference,
                   a.nilai_proyek,
                   a.nilai_bond,
                   a.nilai_ijp,
				   a.fee_base persen_fee_base,
				   a.fee_base * a.nilai_ijp/100 fee_base,
				   a.komisi_agen persen_komisi_agen,
				   a.komisi_agen*a.nilai_ijp/100 komisi_agen,
				   a.persen_reasuransi ,
				   --a.persen_reasuransi * a.nilai_ijp/100 reasuransi,
				   a.reasuransi,
				   --coalesce(a.fee_base/100,0)*a.persen_reasuransi * a.nilai_ijp/100 reasuransi_fee_base,
				   a.reasuransi_fee_base,
				   a.persen_coguarantee,
				   a.persen_coguarantee * a.nilai_ijp/100 coguarantee,
				   a.potongan_co persen_potongan_co,
				   a.potongan_co * a.nilai_ijp/100 potongan_co,
				   a.potongan_re persen_potongan_re,
				   a.potongan_re * a.nilai_ijp/100 potongan_re,
				   to_char(a.periode_berlaku + (a.jangka_waktu)* '1 MONTH'::interval, 'DD-MM-YYYY') jatuh_tempo,
				   to_char(a.periode_berlaku, 'DD-MM-YYYY') periode_berlaku,
				   coalesce(e.jumlah_karyawan,0) tenaga_kerja,
				   --a.nilai_bond * (100-coalesce(a.persen_reasuransi,0))/100 as plafond_or
					a.plafond_or,
					a.penjaminan nilai_penjaminan,
					c.is_konvensional, 
					0 nilai_asuransi_1,
					0 nilai_asuransi_2,
					(a.fee_base*(a.persen_coguarantee*a.nilai_ijp/100)/100)  coguarantee_fee_base,
					case
					    when cast(usia AS varchar) IS NULL then cast(tanggal_usia AS varchar)
					    else cast(usia AS varchar)
					end    
					 umur,
				    '--' note,
				  case
				  	when d.tgl_sk >= '2016-12-01' and d.tgl_sk <= '2017-11-30' then 
				  	(coalesce(a.reasuransi,0)-(coalesce(a.reasuransi_fee_base,0)))*5/100
				  	when d.tgl_sk >= '2017-12-01' and d.tgl_sk <= '2019-08-31' then 
				  	(coalesce(a.reasuransi,0)-(coalesce(a.reasuransi_fee_base,0)))*7.5/100
				  	when d.tgl_sk > '2019-09-01' then 
				  	(coalesce(a.reasuransi,0)-(coalesce(a.reasuransi_fee_base,0)))*10/100
				  	else 0
				  	end ri_com,
						CASE
							when  d.tgl_sk >= '2019-09-30' and d.tgl_sk <= '2020-04-30' then
							((COALESCE(a.persen_coguarantee,0)* a.nilai_ijp/100)-((COALESCE(a.persen_coguarantee,0)* a.nilai_ijp/100)*(COALESCE(a.fee_base,0)/100)))*5/100
							when  d.tgl_sk >= '2020-05-01'  then
							((COALESCE(a.persen_coguarantee,0)* a.nilai_ijp/100)-((COALESCE(a.persen_coguarantee,0)* a.nilai_ijp/100)*(COALESCE(a.fee_base,0)/100)))*7.5/100
							ELSE 0
							end komisi_co,
							0 komisi_asuransi
                from 
                  v_tr_transaksi_suretyship a
                  inner join mt_jenis_suretyship b on a.id_jenis_suretyship = b.id_jenis_suretyship
                  inner join mt_suretyship c on b.id_mt_suretyship = c.id_mt_suretyship
                  inner join tr_sertifikat_penjaminan d on a.id_sertifikat = d.id_sertifikat
                  inner join mt_principal e on a.id_principal = e.id_principal
                  inner join mt_bank_cabang f on d.id_mt_bank_cabang = f.id_mt_bank_cabang
				  Left join mt_agen g on a.id_mt_agen=g.id_mt_agen
				  left join mt_broker h on d.reas_id_broker = h.id_broker
    	 
	            where
				--	( a.flag_deletion is null OR (a.flag_deletion is not null and a.change_date > '2020-07-31') ) AND				
				--d.id_reference is null and
				--	a.flag_deletion is null and
	             --  d.tgl_sk >='2015-01-01'  and d.tgl_sk<='2020-07-31'
				 a.flag_deletion is null and 		
				d.flag_delete is null and 
				( 
					( tgl_sk >='2015-01-01' and  tgl_sk <='2020-07-31'  and 
						( tgl_sk_cetak is null or ( tgl_sk_cetak is not null and d.id_reference is null) ) 
					) OR  
					
					( tgl_sk_cetak >='2015-01-01' and  tgl_sk_cetak <='2020-07-31' and d.id_reference is not null)
				) and 
				c.id_mt_suretyship != 9
	              
	                union all
				 select 
					a.id_transaksi_suretyship,
                   b.jenis_suretyship,
                   c.suretyship,
                   d.nomor_sk,
                   d.tgl_sk,
				   d.tgl_sk_cetak,
                   e.nama_principal,
                   f.nama_bank_cabang as nama_obligee,
				   a.flag_deletion,
				   a.id_reference,
                   a.nilai_proyek,
                   a.nilai_bond,
                   a.nilai_ijp,
				   a.fee_base persen_fee_base,
				   a.fee_base * a.nilai_ijp/100 fee_base,
				   a.komisi_agen persen_komisi_agen,
				   a.komisi_agen*a.nilai_ijp/100 komisi_agen,
				   a.persen_reasuransi ,
				   --a.persen_reasuransi * a.nilai_ijp/100 reasuransi,
				   a.reasuransi,
				   --coalesce(a.fee_base/100,0)*a.persen_reasuransi * a.nilai_ijp/100 reasuransi_fee_base,
				   a.reasuransi_fee_base,
				   a.persen_coguarantee,
				   a.persen_coguarantee * a.nilai_ijp/100 coguarantee,
				   a.potongan_co persen_potongan_co,
				   a.potongan_co * a.nilai_ijp/100 potongan_co,
				   a.potongan_re persen_potongan_re,
				   a.potongan_re * a.nilai_ijp/100 potongan_re,
				   to_char(a.periode_berlaku + (a.jangka_waktu)* '1 MONTH'::interval, 'DD-MM-YYYY') jatuh_tempo,
				   to_char(a.periode_berlaku, 'DD-MM-YYYY') periode_berlaku,
				   coalesce(e.jumlah_karyawan,0) tenaga_kerja,
				   --a.nilai_bond * (100-coalesce(a.persen_reasuransi,0))/100 as plafond_or
					a.plafond_or,
					a.penjaminan nilai_penjaminan,
					c.is_konvensional, 
					nilai_asuransi_1,
					nilai_asuransi_2,
					(a.fee_base*(a.persen_coguarantee*a.nilai_ijp/100)/100)  coguarantee_fee_base,
					case
					    when cast(usia AS varchar) IS NULL then cast(tanggal_usia AS varchar)
					    else cast(usia AS varchar)
					end    
					 umur,
				    a.catatan note,
				  case
				  	when d.tgl_sk >= '2016-12-01' and d.tgl_sk <= '2017-11-30' then 
				  	(coalesce(a.reasuransi,0)-(coalesce(a.reasuransi_fee_base,0)))*5/100
				  	when d.tgl_sk >= '2017-12-01' and d.tgl_sk <= '2019-08-31' then 
				  	(coalesce(a.reasuransi,0)-(coalesce(a.reasuransi_fee_base,0)))*7.5/100
				  	when d.tgl_sk > '2019-09-01' then 
				  	(coalesce(a.reasuransi,0)-(coalesce(a.reasuransi_fee_base,0)))*10/100
				  	else 0
				  	end ri_com,
						CASE
							when  d.tgl_sk >= '2019-09-30' and d.tgl_sk <= '2020-04-30' then
							((COALESCE(a.persen_coguarantee,0)* a.nilai_ijp/100)-((COALESCE(a.persen_coguarantee,0)* a.nilai_ijp/100)*(COALESCE(a.fee_base,0)/100)))*5/100
							when  d.tgl_sk >= '2020-05-01'  then
							((COALESCE(a.persen_coguarantee,0)* a.nilai_ijp/100)-((COALESCE(a.persen_coguarantee,0)* a.nilai_ijp/100)*(COALESCE(a.fee_base,0)/100)))*7.5/100
							ELSE 0
							end komisi_co,
							nilai_asuransi_2 * 5/100 komisi_asuransi
                from 
                  v_tr_transaksi_suretyship_asuransi a
                  inner join mt_jenis_suretyship b on a.id_jenis_suretyship = b.id_jenis_suretyship
                  inner join mt_suretyship c on b.id_mt_suretyship = c.id_mt_suretyship
                  inner join tr_sertifikat_penjaminan d on a.id_sertifikat = d.id_sertifikat
                  inner join mt_principal e on a.id_principal = e.id_principal
                  inner join mt_bank_cabang f on d.id_mt_bank_cabang = f.id_mt_bank_cabang
				  Left join mt_agen g on a.id_mt_agen=g.id_mt_agen
				  left join mt_broker h on d.reas_id_broker = h.id_broker
    	          left join (
                    SELECT id_transaksi_suretyship, 
                            sum(nilai_asuransi_1)  nilai_asuransi_1, 
                            sum(nilai_asuransi_2)  nilai_asuransi_2 FROM (
                                SELECT
                                    id_transaksi_suretyship,
                                        CASE 
                                                    WHEN  
                                                        id_asuransi = 1
                                                    THEN
                                                        nilai_asuransi
                                                    ELSE
                                                        0
                                                END AS nilai_asuransi_1,
                                        CASE 
                                                    WHEN  
                                                        id_asuransi = 2
                                                    THEN
                                                        nilai_asuransi
                                                    ELSE
                                                        0
                                                END AS nilai_asuransi_2 
                                FROM
                                tr_transaksi_suretyship_ext	 
                            ) ss GROUP BY id_transaksi_suretyship
                ) i ON a.id_transaksi_suretyship = i.id_transaksi_suretyship
	            where
				--	( a.flag_deletion is null OR (a.flag_deletion is not null and a.change_date > '2020-07-31') ) AND				
				--d.id_reference is null and
				--	a.flag_deletion is null and
	             --  d.tgl_sk >='2015-01-01'  and d.tgl_sk<='2020-07-31'
				 a.flag_deletion is null and 		
				d.flag_delete is null and 
				( 
					( tgl_sk >='2015-01-01' and  tgl_sk <='2020-07-31'  and 
						( tgl_sk_cetak is null or ( tgl_sk_cetak is not null and d.id_reference is null) ) 
					) OR  
					
					( tgl_sk_cetak >='2015-01-01' and  tgl_sk_cetak <='2020-07-31' and d.id_reference is not null)
				) and 
				c.id_mt_suretyship = 9

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    TableDescription = tableProp.value,
    ColumnName = col.column_name, 
    ColumnDataType = col.data_type,
    ColumnDescription = colDesc.ColumnDescription
FROM information_schema.tables tbl
INNER JOIN information_schema.columns col 
    ON col.table_name = tbl.table_name
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    ON tableProp.major_id = object_id(tbl.table_schema + '.' + tbl.table_name) 
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    INNER JOIN sys.extended_properties colProp
        ON colProp.major_id = sc.object_id
            AND colProp.minor_id = sc.column_id
            AND colProp.name = 'MS_Description' 
) colDesc
    ON colDesc.object_id = object_id(tbl.table_schema + '.' + tbl.table_name)
        AND colDesc.name = col.COLUMN_NAME
WHERE tbl.table_type = 'base table'
--AND tableProp.[value] IS NOT NULL OR colDesc.ColumnDescription IS NOT null

sql - How to list active connections on PostgreSQL? - Stack Overflow

SELECT * FROM pg_stat_activity;

Rolling up multiple rows into a single row and column for SQL Server data

SELECT 
   SS.SEC_NAME,
   STUFF((SELECT '; ' + US.USR_NAME 
          FROM USRS US
          WHERE US.SEC_ID = SS.SEC_ID
          ORDER BY USR_NAME
          FOR XML PATH('')), 1, 1, '') [SECTORS/USERS]
FROM SALES_SECTORS SS
GROUP BY SS.SEC_ID, SS.SEC_NAME
ORDER BY 1

MySQL create user

CREATE USER 'user'@'localhost' IDENTIFIED BY 'pass';
GRANT ALL PRIVILEGES ON database.* TO 'user'@'localhost';

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