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Editorial Team
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Asked: 2026-06-03T23:12:59+00:00

I have a mysql table with the following columns SNP Probe Genotype_00 Mean_00 Std_00

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I have a mysql table with the following columns

SNP
Probe
Genotype_00
Mean_00
Std_00
Genotype_01
Mean_01
Std_01
Genotype_11
Mean_11
Std_11

I would like the table to have the following columns:

SNP
Probe
Genotype
Mean 
Std

where for each pair (SNP,Probe) I have three rows, one corresponding to each genotype.

For example the row

rs1 probe1 AA 5.6 0.3 AG 4.3 0.2 GG 3.4 0.1

should be transformed into

rs1 probe1 AA 5.6 0.3
rs1 probe1 AG 4.3 0.2
rs1 probe1 GG 3.4 0.1

Can anyone help me finding a way to do this?
Thanks a lot in advance, any suggestion will be greatly appreciated

Rossella

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1 Answer

  1. Editorial Team

    Create Table with follow columns.

    SNP
Probe
Genotype
Mean 
Std

    Then execute these SQL statements one by one

    INSERT INTO new_table
SELECT SNP, Probe, Genotype_00, Mean_00, Std_00
FROM old_table

INSERT INTO new_table
SELECT SNP, Probe, Genotype_01, Mean_00, Std_01
FROM old_table


INSERT INTO new_table
SELECT SNP, Probe, Genotype_11, Mean_00, Std_11
FROM old_table
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