SQL Commands Cheat Sheet – How to Learn SQL in 10 Minutes

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Thu Nov 25 2021 13:02:43 GMT+0000 (Coordinated Universal Time)

Saved by @moonbells #sql

ASCII -- Returns the equivalent ASCII value for a specific character.

CHAR_LENGTH -- Returns the character length of a string.

CHARACTER_LENGTH -- Same as CHAR_LENGTH.

CONCAT -- Adds expressions together, with a minimum of 2.

CONCAT_WS -- Adds expressions together, but with a separator between each value.

FIELD -- Returns an index value relative to the position of a value within a list of values.

FIND IN SET -- Returns the position of a string in a list of strings.

FORMAT -- When passed a number, returns that number formatted to include commas (eg 3,400,000).

INSERT -- Allows you to insert one string into another at a certain point, for a certain number of characters.

INSTR -- Returns the position of the first time one string appears within another.

LCASE -- Converts a string to lowercase.

LEFT -- Starting from the left, extracts the given number of characters from a string and returns them as another.

LENGTH -- Returns the length of a string, but in bytes.

LOCATE -- Returns the first occurrence of one string within another,

LOWER -- Same as LCASE.

LPAD -- Left pads one string with another, to a specific length.

LTRIM -- Removes any leading spaces from the given string.

MID -- Extracts one string from another, starting from any position.

POSITION -- Returns the position of the first time one substring appears within another.

REPEAT -- Allows you to repeat a string

REPLACE -- Allows you to replace any instances of a substring within a string, with a new substring.

REVERSE -- Reverses the string.

RIGHT -- Starting from the right, extracts the given number of characters from a string and returns them as another.

RPAD -- Right pads one string with another, to a specific length.

RTRIM -- Removes any trailing spaces from the given string.

SPACE -- Returns a string full of spaces equal to the amount you pass it.

STRCMP -- Compares 2 strings for differences

SUBSTR -- Extracts one substring from another, starting from any position.

SUBSTRING -- Same as SUBSTR

SUBSTRING_INDEX -- Returns a substring from a string before the passed substring is found the number of times equals to the passed number.

TRIM -- Removes trailing and leading spaces from the given string. Same as if you were to run LTRIM and RTRIM together.

UCASE -- Converts a string to uppercase.

UPPER -- Same as UCASE.

COPY

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#sql #nodejs

javascript - Import sql file in node.js and execute against PostgreSQL - Stack Overflow

function processSQLFile(fileName) {

  // Extract SQL queries from files. Assumes no ';' in the fileNames
  var queries = fs.readFileSync(fileName).toString()
    .replace(/(\r\n|\n|\r)/gm," ") // remove newlines
    .replace(/\s+/g, ' ') // excess white space
    .split(";") // split into all statements
    .map(Function.prototype.call, String.prototype.trim)
    .filter(function(el) {return el.length != 0}); // remove any empty ones

  // Execute each SQL query sequentially
  queries.forEach(function(query) {
    batch.push(function(done) {
      if (query.indexOf("COPY") === 0) { // COPY - needs special treatment
        var regexp = /COPY\ (.*)\ FROM\ (.*)\ DELIMITERS/gmi;
        var matches = regexp.exec(query);
        var table = matches[1];
        var fileName = matches[2];
        var copyString = "COPY " + table + " FROM STDIN DELIMITERS ',' CSV HEADER";
        var stream = client.copyFrom(copyString);
        stream.on('close', function () {
          done();
        });
        var csvFile = __dirname + '/' + fileName;
        var str = fs.readFileSync(csvFile);
        stream.write(str);
        stream.end();
      } else { // Other queries don't need special treatment
        client.query(query, function(result) {
          done();
        });
      }
    });
  });
}

#sql

mysql FIND_IN_SET equivalent to postgresql

select * 
from folder f
  join uploads u ON u.id = f.folderId 
where '8' = ANY (string_to_array(some_column,','))

#sql

sql.How to get Quarter’s Start and End Date for a given date in Sql Server

DECLARE @AnyDate DATETIME
SET @AnyDate = GETDATE()

SELECT @AnyDate AS 'Input Date',
  DATEADD(q, DATEDIFF(q, 0, @AnyDate), 0) 
                        AS 'Quarter Start Date',       
  DATEADD(d, -1, DATEADD(q, DATEDIFF(q, 0, @AnyDate) + 1, 0)) 
                        AS 'Quarter End Date'

#sql

storing selected items from listbox for sql where statement

dim tempo = listbox1.SelectedItems
dim students as string = ""
for each selected in tempo
students = selected.ToString & "," & students
next

#sql #sum

SQL How to Sum SELECT

Use Sum aggregate function with case statement as below, if you want sum of those t.value based on t.clock then do group by on that column so that you will get clock while sum of values.

select sum(case when  i.hostid='223344'   and t.itemid = '0223344' then t.value end) as FirstValue,sum(case when  i.hostid='112233' and t.itemid = '0112233' then t.value end) as SecondValue
from hosts h, items i,history_uint t
where i.hostid=h.hostid and t.itemid=i.itemid
If it is based on t.clock then

   select t.clock, sum(case when  i.hostid='223344'   and t.itemid = '0223344' then t.value end) as FirstValue,sum(case when  i.hostid='112233' and t.itemid = '0112233' then t.value end) as SecondValue
    from hosts h, items i,history_uint t
    where i.hostid=h.hostid and t.itemid=i.itemid
    group by t.clock
    0

You can try this below logic-

SELECT i.hostid,t.itemid,t.value as OneValues, t.clock as time
FROM hosts h 
INNER JOIN items i 
    ON i.hostid=h.hostid
    AND i.hostid IN ('223344','112233')
    AND i.itemid IN ('0223344','0112233')
INNER JOIN  history_uint t 
    ON t.itemid=i.itemid

#sql

mysql - ALTER TABLE to add a edit primary key - Stack Overflow

ALTER TABLE provider DROP PRIMARY KEY, ADD PRIMARY KEY(person, place, thing);

#sql #database #querying-data

SQL Select all columns with GROUP BY one column

https://stackoverflow.com/a/39816161/6942743

#sql

akrual komisi

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

#sql #query

How to Search and Destroy Non-SARGable Queries on Your Server - Data with Bert

-- From https://github.com/bertwagner/SQLServer/blob/master/Non-SARGable%20Execution%20Plans.sql
-- This script will check the execution plan cache for any queries that are non-SARGable.
-- It does this by finding table and index scans that contain a scalar operators

SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
 
DECLARE @dbname SYSNAME
SET @dbname = QUOTENAME(DB_NAME());
 
WITH XMLNAMESPACES (DEFAULT 'http://schemas.microsoft.com/sqlserver/2004/07/showplan')

SELECT
   stmt.value('(@StatementText)[1]', 'varchar(max)') AS [Query],
   query_plan AS [QueryPlan],
   sc.value('(.//Identifier/ColumnReference/@Schema)[1]', 'varchar(128)') AS [Schema], 
   sc.value('(.//Identifier/ColumnReference/@Table)[1]', 'varchar(128)') AS [Table], 
   sc.value('(.//Identifier/ColumnReference/@Column)[1]', 'varchar(128)') AS [Column] ,
   CASE WHEN s.exist('.//TableScan') = 1 THEN 'TableScan' ELSE 'IndexScan' END AS [ScanType],
   sc.value('(@ScalarString)[1]', 'varchar(128)') AS [ScalarString]
FROM 
	sys.dm_exec_cached_plans AS cp
	CROSS APPLY sys.dm_exec_query_plan(cp.plan_handle) AS qp
	CROSS APPLY query_plan.nodes('/ShowPlanXML/BatchSequence/Batch/Statements/StmtSimple') AS batch(stmt)
	CROSS APPLY stmt.nodes('.//RelOp[TableScan or IndexScan]') AS scan(s)
	CROSS APPLY s.nodes('.//ScalarOperator') AS scalar(sc)
WHERE
    s.exist('.//ScalarOperator[@ScalarString]!=""') = 1 
    AND sc.exist('.//Identifier/ColumnReference[@Database=sql:variable("@dbname")][@Schema!="[sys]"]') = 1
	AND sc.value('(@ScalarString)[1]', 'varchar(128)') IS NOT NULL

#sql

Get the field type for each column in a table

SELECT column_name as 'Column Name', data_type as 'Data Type'
FROM information_schema.columns
WHERE table_name = 'hrStaff'

#sql

mysql - Disable ONLY_FULL_GROUP_BY - Stack Overflow

mysql > SET GLOBAL sql_mode=(SELECT REPLACE(@@sql_mode,'ONLY_FULL_GROUP_BY',''));

#sql

SQL Server: Extract Table Meta-Data (description, fields and their data types) - Stack Overflow

SELECT
    TableName = tbl.table_schema + '.' + tbl.table_name, 
    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
LEFT JOIN sys.extended_properties tableProp 
    ON tableProp.major_id = object_id(tbl.table_schema + '.' + tbl.table_name) 
        AND tableProp.minor_id = 0
        AND tableProp.name = 'MS_Description' 
LEFT JOIN (
    SELECT sc.object_id, sc.column_id, sc.name, colProp.[value] AS ColumnDescription
    FROM sys.columns sc
    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

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

SELECT * FROM pg_stat_activity;

#sql

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

#sql

MySQL create user

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

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